The toilet tank is sweating, what should I do? What to do if the toilet cistern is sweating

The appearance of condensation on cistern the toilet is a rather unpleasant phenomenon. Condensation accumulates, covering the entire tank in drops. The drops roll down, forming a wet spot around the toilet. And such dampness is not at all harmless.

Fungal spores, easily carried through the air, contribute to the development of pulmonary diseases in those who live in such an apartment. Once in the body, the spores cause lesions in the respiratory system, including pulmonary edema.

Why does condensation collect on the tank?

As you know from a school physics course, the air around us contains water vapor, the amount of which directly depends on temperature.

The transition of moisture from water vapor to liquid droplets occurs when the temperature of heated moist air decreases. We see this when condensation appears on the bathroom mirror, when glasses fog up in winter, when entering a warm room from the street, and also in many other cases.

How to get rid of condensation?

There are several ways to combat condensation on tank walls, pipes and other surfaces.

It’s not that difficult to adjust ventilation if it doesn’t work well. To improve the operation of the hood in the bathroom or bathroom, you can install a small axial fan, providing forced ventilation and removal of heated moist air from the room into the ventilation duct and then into the exhaust riser of the building ventilation system.

Fans produced today are characterized by low energy consumption and ease of installation, which allows you to install them in a matter of minutes, even without experience in performing such work.

When choosing a fan, you should first pay attention to its performance. In accordance with modern sanitary standards and rules, air exchange in such premises must be ensured in a volume of 25 cubic meters per hour.

Installing a double tank toilet

A very effective way to get rid of condensation on the toilet tank is to install a double tank.

Installation of double flush fittings

To reduce the amount cold water From the water supply that enters the tank and cools its walls, you can install a drain fitting with a double flush.

Adjusting the flush fittings of the cistern

Most common cause The appearance of condensation on the toilet is water leakage, when water constantly flows in the toilet in a thin stream.

Such leakage leads to the fact that the water in the tank does not have time to heat up, constantly being replenished with ice water from the plumbing system, it greatly cools the toilet tank, on the walls of which condensation falls from contact with warm air.

In this case, adjustment of the flush fittings will be required to stop the constant flow of water.

• replacing the sealing rubber;
• adding a small weight to the valve to improve its fit;
• softening the valve rubber by pouring boiling water (helps only for a while, as a temporary measure);
• Thorough cleaning of deposits on the rubber band and on the valve using vinegar.

Adjusting the float valve is also not particularly difficult and consists of setting it to shut off when water is drawn to the desired level, so that it does not flow over the overflow. An overflow is a hole in any flush fitting that allows excess water entering the toilet to be discharged into the toilet if the float valve malfunctions.

Another reliable way to stop the tank from constantly getting wet from the condensation that falls on it can be to replace a conventional compact toilet with a ceramic tank installed on it with an installation.

In addition to improving air exchange and adjusting the drain fittings in the bathroom, to reduce the amount of moisture accumulating on the tank, you should follow some rules.

How to get rid of condensation on a toilet tank

Is your toilet tank constantly wet from condensation? Read about the main reasons for its occurrence and ways to eliminate it! Photo and video.

Getting rid of condensation on the toilet tank

Many city apartment owners are faced with the problem of moisture appearing on the surface of the cistern. If you do nothing, the moisture flowing onto the floor will soon seep through the floor covering and seep into the apartment to your neighbors. Also, moisture drainage will lead to the appearance of limescale on sanitary fixtures. Homeowners are perplexed about how to get rid of condensation on the toilet cistern - we will look at the answer to this question in our article.

Main causes

According to experts, drizzle on the toilet tank appears in late autumn or winter. The reason for this phenomenon is considered to be a sharp difference between the water temperature in plumbing system and indoor air. If the liquid temperature in the supply pipes is between 3 and 5 degrees Celsius, then in the bathroom these figures increase to 18-22 degrees. If there is high humidity in the room, dew drops will appear on the surface of the tank filled with cold water. Moisture condensation will occur with the same intensity on cast iron products, ceramic or plastic plumbing fixtures.

Explaining the reason for the appearance of condensation in winter is quite simple. At this time, water vapor in the air quickly turns into liquid form, this usually happens when the room temperature drops. It is impossible to completely get rid of drizzle, but it is quite possible to reduce its influence.

The main reasons for the appearance of water droplets on the drain tank are as follows:

• breakdown of the shutter valve, as a result of which the tank will constantly be filled with cold water coming from the water supply. Non-standard operation of the locking mechanism can be easily determined by the thin stream of water that flows down the surface of the toilet. Such accidents lead not only to the appearance of drops of moisture on the plumbing, but also to excessive water consumption;
• condensation can also appear as a result of frequent drains, which leads to complete emptying of the tank. Modern plumbing fixtures are usually made with thin walls that cool quickly;
• Not correct work ventilation system;
• use of the premises for purposes other than their intended purpose.

Locking mechanism repair

First you need to take care of the proper operation of the drain mechanism. In winter, dew drops constantly appear on the surface of the tank, but improper operation of the drain system will enhance this effect and can lead to irreparable consequences.

The main cause of failure is the destruction of the material of the drain seal or inlet mechanism. In this case, water from the reservoir will constantly flow into the sewer system, while the container is constantly filled with cold liquid from the water supply. As we have already said, up to 2 liters of liquid per day can drain onto the floor, but the volume of condensed moisture can be reduced by installing new seals.

Drain tank design diagram

Before installing the drain system, remove limescale from the surface and install new sealing gaskets. To avoid deformation of the seals, the fixing nuts are tightened manually. Only the metal fasteners that pass through the bottom of the tank are tightened with a wrench, but such products are only used on older plumbing fixtures.

Partial elimination of condensate by reducing the volume of the drain tank

The appearance of dew on plumbing fixtures can be prevented by reducing the volume of drained liquid. It will not be possible to completely avoid the appearance of condensation, especially if you use the toilet frequently. In this case, the tank will be constantly filled, as a result of which the liquid will not have time to heat up to the required temperature. The difference in temperature fluctuations will lead to the appearance of moisture on the surface of the tank.

To solve the problem, it is recommended not to completely drain the water in the tank, which can be achieved by using the half-drain button. The second way out of this situation would be to install it in the tank plastic bottle filled with liquid. Another option to solve the problem is to replace the drain mechanism with a more modern model.

Preventing temperature fluctuations

Using this method allows you to completely get rid of the formation of condensation on the surface of plumbing fixtures. Dew droplets will not appear on the surface of the tank when the temperature of the liquid coming from the water supply corresponds to the temperature inside the room. In this case, moisture condensation will not occur if the drain system breaks down.

In summer, tap water is heated as it passes through the piping system; at the entrance to the toilet tank, the temperature of the liquid is similar to the air temperature in the room, which will prevent the formation of condensation. In winter, the supply pipeline is insulated or heated using a special heater equipped with a thermostat. The device is set to room temperature. The second option to solve the problem is to cool the air in the bathroom or toilet.

Reducing air humidity

Proper operation of the ventilation system will help reduce air humidity, because excess moisture will be removed into the hood. Some homeowners close the vents in the bathroom tightly, which will be the main cause of condensation. The first step is to check the operation of the ventilation.

If the ventilation system is not functioning properly, the ducts must be cleaned. If this does not help, contact the appropriate service. In small bathrooms where a significant amount of moist air accumulates, a forced air duct is installed. Constant air circulation in the apartment can be ensured by installing several through holes in the doors of the bathroom or toilet.

Ventilation diagram in the toilet

Using a double wall cistern

The latest toilet models are equipped with similar tanks. Such products cost much more than conventional plumbing fixtures. Structurally, the new tank consists of an air layer housing and a plastic container that is filled with water. This solution eliminates the difference between the temperature of the incoming liquid and the air temperature inside the room.

• drain the water from the tank;
• you can remove it, it will be easier;
• dry;
• stick Izolon from the inside over the entire surface of the tank.

How to get rid of condensation on a toilet tank: the main causes

How to get rid of condensation on a toilet tank yourself. Preventing temperature fluctuations and reducing air humidity. Repair of the locking mechanism.

Why does the toilet tank sweat and how can condensation be eliminated?

The condensation that appears on the toilet cistern puzzles many owners of comfortable housing. Due to droplets of water constantly flowing from the surface of the cistern, puddles form on the floor, which must be wiped off in a timely manner. Otherwise, dampness will lead to mold and an unpleasant odor. Of course, you can adapt some kind of container to collect water, and then remember to empty it of its contents in a timely manner. Many housewives do this, trying to solve this problem in this simple way. Men are trying to find out why the toilet tank is sweating, so that by eliminating the cause, they can forget about the problem forever. Are there effective ways to deal with condensation that periodically appears on the toilet tank? Let's figure it out.

Reasons for the formation of condensation on the drain tank:

• High level of humidity in the bathroom and throughout the entire apartment. High humidity may be due to big amount indoor plants, drying large amounts of wet laundry, leaking water pipes or heating systems and other factors.
• Continuous flow of cold water into the toilet tank for even a second due to a malfunction of the shut-off valves, as a result of which the water does not have time to warm up to room temperature.

To understand why the toilet tank sweats, you need to remember a little about your school physics course. The contact of warm and moisture-saturated air with cold surfaces inevitably leads to the appearance of water droplets on them. This means that we need to look for ways to dry the air, as well as increase the temperature of the surface of the drain tank.

Checking the condition of the ventilation holes

To reduce the level of air humidity, you need to adjust the ventilation of the bathroom. Each apartment has special ventilation “windows” that provide air circulation. In pursuit of interior beauty, some residents seal these holes. finishing materials, which, of course, is unacceptable.

To disguise ventilation windows, you need to buy decorative grilles that are specifically designed for this purpose. They can be selected by color, shape, and design. Before installing decorative grilles, clear the ventilation ducts of debris.

Installing a fan that turns on when the lights are turned on will help partially solve the problem of condensation.

Air ventilation in the room can be organized even more efficiently if you connect the system forced ventilation. To calculate the power of the ventilation system, you must contact specialists. After assessing the condition of the bathroom and the intensity of its use, professionals will give recommendations on the choice of equipment.

Repair of faulty shut-off valves

If the flush mechanism breaks down, the water in the toilet flows without stopping. This leads to constant replenishment of the tank with cold water, which reduces its surface temperature. In this case, the condensation process occurs continuously. The problem can only be eliminated by repairing the shut-off valves or replacing them completely. Conduct renovation work on their own or to invite a plumber, each homeowner decides independently, based on the financial capabilities of the family.

In addition to partially eliminating the condensation problem, repairing the drain mechanism of the tank will lead to savings in water consumption. This is especially true for owners of those apartments in which water meters are installed.

Double wall cistern

Manufacturers of modern toilets are aware of the problem of condensation and offer their own effective solution. The latest toilet models are being produced with an improved cistern design that prevents them from “crying.”

The double-walled cisterns of modern toilet models never sweat

In these models, an additional plastic container is inserted inside the tank, the walls of which do not come into contact with the ceramic surface of the product. As a result, its temperature is always constant and equal to room temperature. This constructive solution allows you to solve the problem once and for all. However, for many buyers, these models still remain inaccessible at a cost that is several times higher than the price of conventional toilets.

Some amateur craftsmen try to insulate the walls of the tank from the effects of cold water using heat-insulating materials that are glued to them from the inside of the tank. However, this technology does not completely solve the problem of condensation.

Some amateur craftsmen are trying to combat condensation on the tank by covering its inner walls with heat-insulating material

If you still can’t afford expensive “no-crying” models, then try installing forced ventilation. Even a simple fan, inserted into the ventilation window and turned on when the light is turned on in the bathroom, will solve the problem of condensation on cold surfaces. If the toilet cistern continues to sweat after this, call specialists to install more powerful ventilation systems.

Why does the toilet tank sweat and how to eliminate condensation

Why the toilet cistern sweats - possible reasons. How to get rid of condensation on a toilet tank? An overview of two methods for solving a pressing everyday problem.

Condensation on the toilet cistern - how to get rid of it?

The formation of “dew” on the toilet cistern is a problem that occurs in almost every apartment in winter. The consequences can be different - from small drips and a slight increase in humidity in the bathroom or toilet to the formation of puddles on the floor and the proliferation of mold spores. You can avoid unpleasant consequences by eliminating condensation on the toilet tank in advance; you will learn how to get rid of it in this article.

Condensation on the toilet cistern

Why do water streaks form?

• Ventilation fault

The cause of condensation may be malfunctions in the ventilation system or the absence of a ventilation window (often sealed during renovation in order to improve the interior). As a result, proper air circulation is not ensured, and excess moisture settles on surfaces.

Ventilation is a mandatory attribute of a modern apartment

• Increased humidity levels

The location of the toilet in the bathroom, the constant drying of wet clothes in the apartment, leaking pipes, and a large number of plants in the house cause an increased concentration of moisture in the air. While it simply evaporates on pipes, it settles on plastic and ceramic surfaces, forming drops. On the pages of our portal you can also find out how installing a toilet on a tiled floor and why it matters.

High humidity is the main cause of condensation

• Temperature difference

Water for internal filling of the tank is drawn from a centralized network. Its temperature in winter is 3 – 5 °C. The outside air in the room can reach 25 °C due to the placement of heating pipes. A difference of 10 – 15 °C is enough for condensation to form.

• Drainage device failure

A malfunction of the shut-off valves leads to the constant filling of the tank with cold water, which goes down the drain without having time to warm up.

If the toilet tank breaks, the cold water does not have time to warm up

• Excessive water consumption

A similar phenomenon is observed with frequent use of the drain, especially in large families. In addition to being costly, this leads to a stable maintenance of the difference between the temperature outside and inside, and therefore to the appearance of condensation.

Having established the cause of the appearance, we will consider how to get rid of condensation on the toilet tank.

Normalization of air circulation

First of all, check how effectively natural ventilation works. Ventilation windows should be covered with bars and under no circumstances clogged with dirt and dust.

Natural ventilation is the key to protection against high humidity and mold

Many users prefer to leave open door into the bathroom, but a better option is to make a gap at the bottom.

To improve air circulation, you should install a ventilation grill in the bathroom door

Before installing decorative mesh, the channel should be cleared of debris; if this has not been done, then there is a possibility that there is no draft in the system. In this case, it needs to be cleaned. In a private house, this responsibility falls directly on the owner, in multi-storey residential buildings - on the housing office, where you should contact.

Natural ventilation is not always ensured by ventilation. In this case, an artificial one should be installed. It is difficult to do this on your own, since you need to take into account the power of the equipment and the state of the microclimate of the room, so we recommend contacting special centers.

If natural ventilation is of poor quality, it is necessary to organize forced ventilation

There are also systems that dry air, which are aimed at shared bathrooms. They provide a reduction in humidity by recycling water vapor.

Leveling the temperature balance

To achieve approximately the same water temperature in the tank and in the room, there are two ways.

• Decrease in air temperature

The problem usually occurs in winter, so the first method is not always practical. You can achieve the result by lowering the overall temperature in the system, but then the house will become several degrees cooler. This also has its advantages, because you can save on heating.

A decrease in air temperature helps to equalize the temperature balance

At centralized system This will not solve the problem. You should take care of the thermal insulation of pipes near the bathroom, and also ensure that the doors to the room are closed.

• Heating the supplied water

If possible, it is recommended to make a pipe connection to the tank with hot water. The reservoir will automatically be filled with liquid at room temperature, and the likelihood of condensation will be reduced to zero. The best option– install an electric heater on the tank.

We install an electric heater to increase the water temperature

Repair of shut-off valves

The condensation that forms on stably operating toilets is not so bad and is much easier to eliminate. In systems whose drain mechanism is damaged, this phenomenon becomes permanent, because the tank is constantly refilled with cold water.

To avoid condensation, all fittings must work properly

Gravity flow can be determined by the noise of flowing water or visually: the flow does not stop after filling the tank, the tank takes a very long time to fill and does not fill completely.

• the humidity in the room increases even more;
• puddles form on the floor;
• dampness leads to mold;
• an unpleasant odor occurs.

How to get rid of condensation on the toilet cistern?

In this case, neither ventilation nor air drying will be able to get rid of the problem completely. You can fix it yourself, but if the damage is serious, it is recommended to call a plumber.

If the reason for the constant filling of the tank, therefore, the inability of the water to warm up, is frequent use of the toilet, for example, a hostel, you should monitor the water flow when draining.

Frequent use of the bathroom also causes condensation.

New systems are equipped with a “partial” drain button, which allows you to use half the tank. Old toilets do not have a similar function, but you can replace the fittings by installing more economical ones.

Installation of a universal tank

Modern systems eliminate condensation in advance by equipping toilets with double-walled tanks. Placed inside the main body plastic container, there is no contact with the ceramic walls, so they remain dry.

In search of a solution to how to get rid of condensation on the toilet tank, some users independently try to “insulate” the tank by covering the walls with protective materials inside or outside. The first is not always effective, besides, it reduces the volume of the tank, the second spoils aesthetic appearance, and sometimes harms the surface coating.

Following the suggested tips will help you get rid of “wateriness” in the tank, as well as improve the microclimate of the bathroom.

Condensation on the toilet cistern - how to get rid of the cause?

A painful problem for many during the cold season is condensation on the toilet tank; you can learn how to get rid of it from this article.

Dampness, and as a result, a specific smell, mold, dissatisfaction at home and sometimes with neighbors below due to the appearance of stains on the ceiling - these are the unpleasant consequences of constant condensation on the toilet cistern. The question of how to get rid of this phenomenon becomes urgent.

Why does condensation appear on the toilet tank?

It is harmful to health when the air in the apartment is dry, but high humidity also leads to not very good consequences. This may also cause the tank to sweat. This often occurs where clothes are dried indoors, there is a large aquarium, or lovers of indoor flowers, trying to create conditions for their green pets that are close to natural, constantly spray them.

The most common cause of condensation is high humidity in the apartment.

These reasons can be easily eliminated - you can install air dehumidifiers or take the laundry out to the balcony after washing. It is more difficult when there are leaks in the plumbing or heating systems, or ventilation does not work well. The most common reason is the continuous flow of water at a low temperature due to problems in the design of the drainage device or due to frequent drains. Condensation in these cases is the result of contact of warm room air with the constantly cooling surface of the drain tank.

Malfunctions of the interior of the toilet and their elimination

If water, even in a thin stream, flows freely into the toilet, then its volume in the tank must be continuously replenished. Hence the droplets of water on the surface and large water bills. The solution to the problem is to eliminate the leak. Sometimes replacing a worn rubber siphon membrane helps:

• drain the water completely from the tank;
• fix the lever in such a position that the hole is closed with a valve and no more water flows in;
• dismantle the siphon by disconnecting it from the lever;

First of all, you should eliminate possible tank leaks, if any.

• remove the worn membrane and replace it with a new one;
• return the siphon to its place and secure it;
• perform a test drain.

Attention: when purchasing a new membrane, check that the material and dimensions fully correspond to the old model, otherwise the leak will remain.

The reason may also be hidden in a faulty float, then perform the following actions:

• remove the float from the tank;
• pour water out of it;
• let dry;

Float repair

• seal the hole through which water enters;
• are installed in place.

If it is possible to buy a new float, then this option is better, because... the repaired part will still not last long. The problem can be solved even easier if the leak occurs due to the incorrect position of the float; to eliminate it, simply open the reservoir and return the lever to its normal position.

Faulty ventilation as a cause of condensation

A poorly functioning one can also cause the tank to sweat. But many apartment owners, trying to improve the appearance of the room, simply cover the ventilation holes with cladding. This should not be done; it is better to purchase beautiful decorative grilles specifically designed for this purpose.

To check if it works well, you need to do the following:

1. Light a lighter or match and bring it to the ventilation hole.
2. Look at the light. If it goes out or is drawn into the ventilation duct, then the ventilation system is working normally. When the position of the fire remains the same or the deviation is insignificant, the ventilation does not work.

Be sure to check the proper functioning of the ventilation in the bathroom

You can diagnose ventilation using another method - simply hold a sheet of paper to the ventilation grille. Its adherence indicates the normal functioning of the system, but if it falls, then measures are necessary to improve ventilation.

There are two ways to solve this problem:

1. Cleaning ventilation ducts.
2. Device, i.e. installing a fan on the exhaust duct. This is the most effective method removal of exhaust air.

Advice: to ensure influx fresh air to the toilet, leave a gap of approximately 2 cm between the bottom of the door and the floor, or install a door flap. It will let air in from the outside and at the same time block the penetration of odors from the bathroom into the apartment.

Other ways to eliminate condensation

Never a sweaty toilet

Not long ago, toilet models with a two-piece tank appeared on sale. The water in it is in an internal plastic tank and does not come into contact with the walls of the main vessel, therefore, condensation does not form. The solution is ideal, but the cost is confusing - it is several times higher than that of a toilet with a traditional tank.

Construction of a two-piece toilet cistern

Minimizing waste

The smaller the volume of water that goes down the drain, the greater the chance that there will be no condensation. There are toilets with a cistern equipped with a two-button mechanism. When one button is used, approximately 5 liters of water flows out of the tank, the other - about 7 liters. And in tanks with an Aquastop drainage system, one control button is built into the lid: with one press, water begins to pour out, and with a second press you can stop this process.

Two-button mechanism for flushing water

Insulation of the cistern

Some craftsmen independently isolate the walls of the tank from interaction with cold water. The modification is as follows:

• apply sealant to the bottom, around the holes for installing fittings;
• put the bottom in place;
• insert the inner liner, having previously applied glue to the sides;
• fill the vertical joint with silicone;

Insulated cistern

• treat the joint between the bottom and side walls with sealant;
• Allow at least a day to dry, cut holes for the reinforcement, and apply sealant to the edges;
• put everything in place.

Tip: to insulate the tank, you can use neoprene, foamed polystyrene and other materials.

Here are the main causes of fogging in the toilet tank and how to eliminate them. If you cannot eliminate condensation yourself, contact a professional.

How to get rid of condensation on a toilet tank: video

https://youtu.be/p8iH0UvDCOg

Reasons for the appearance of condensation on the tank: photo

Modern toilets are comfortable and aesthetically pleasing, and the inside smells pleasantly of scented products. To make it comfortable to be in the bathroom, it requires special care. Do you agree? The room must be constantly cleaned and problems, including the formation of condensation, must be eliminated in a timely manner.

If water constantly flows down the outer surface of the tank, an unpleasant odor appears in the apartment over time, and the plumbing fixture loses its attractive appearance. appearance. To get rid of condensation and avoid negative consequences, you need to find out why the toilet tank in the bathroom is sweating.

We will tell you how to independently figure out and eliminate the cause of tank leakage. Useful tips and expert advice are presented in our material. For clarity, it is accompanied by thematic photographs and videos. This will help you get to the root of the problem faster.

If drops of water are constantly forming on the tank of your toilet, the first thing you need to do is identify the cause of their appearance.

A common cause of condensation in a toilet is high rate humidity in the room. To normalize this indicator, it is necessary to identify the cause of the increase in humidity.

Dry indoor air has a negative effect on human health, but high humidity also leads to bad consequences. This may cause fogging of the tank, walls and floor.

Increased humidity in the bathroom can be caused by various reasons:

• The apartment or house contains a large aquarium or a lot of vegetation that requires constant watering. In these cases, the problem can be solved by installing dehumidifiers.
• Washing and drying clothes is carried out in significant volumes, which is more often observed in large families. It is recommended to hang washed laundry on the balcony or in the yard.
• Moisture can settle on the cistern and the surfaces of the bathroom walls due to leaks sewer pipes or connections. It is urgent to identify and fix the plumbing problem.
• Insufficient ventilation does not fulfill its functions, as a result of which the room cannot dry quickly.
• Due to a breakdown of the shut-off valves, cold water may constantly flow in the tank, which does not have time to reach room temperature and causes condensation to appear on the walls of the plumbing.

Condensation forms on the tank of plumbing equipment due to the fact that the air temperature in the room differs from the temperature of the water in the toilet by about 15 degrees. Therefore, the outer surface of the tank begins to fog up.

Since water enters the toilet from a water supply system located underground or outdoors, its temperature depends on external weather conditions.

In winter, the heating season begins, during which the room heats up. During this period, the greatest difference in temperature between the air in the bathroom and the water in the toilet is observed.

The laws of physics will help identify the original source of the malfunction. As you know, warm air currents, in contact with cold water (in the drain tank), are converted into droplets of moisture. The process of condensation formation on the tank can be stopped by studying in more detail the possible causes of this phenomenon and ways to eliminate them.

The consequences of condensation on the drain tank

If you do not take immediate action when water droplets appear on the toilet cistern, then a puddle of water will appear under the plumbing equipment.

In the future this will lead to the following consequences:

• increasing humidity in the bathroom;
• the occurrence of mold and fungi;
• the appearance of an unpleasant damp smell;
• plumbing will be subject to corrosion, causing it to rust and lose its attractive appearance;
• formation of rust and corrosion, gradual destruction of the sewer pipeline;
• the tank and its bolts will begin to rust, become unusable and require replacement;
• rotting of floor and ceiling materials, which can cause partial destruction of the ceilings.

The problem of condensation in the bathroom, at first glance, may seem insignificant, but if this phenomenon is ignored for a long time, serious consequences can occur.

Dampness, black mold, unpleasant odor, discomfort and complaints from neighbors living below about the appearance of stains on the ceiling are the results of continuous condensation on the surface of your toilet cistern.

Due to constant condensation in the bathroom, pipes corrode and rust, which subsequently leads to their destruction and leakage

In addition to pipe corrosion, there is a more serious problem. If you ignore the formation of puddles on the floor for a long time, then under the influence of moisture a gradual process of rotting of the floor materials occurs.

As a result, water seeps below, provoking processes of decay of materials on ceiling living below neighbors. At first, damp stains will appear on the ceiling. In the future, the destruction of the ceiling between apartments is possible.

If your toilet cistern is sweating, you need to take drastic measures immediately. Methods for dealing with unaesthetic condensation depend on the reasons for its formation.

Image gallery

Drops of liquid, and sometimes large drips on the flush tank in the toilet, are a common occurrence. Gradually accumulating on the floor, such moisture requires frequent cleaning; in addition, condensation on the toilet tank leads to corrosion of water pipes (with old plumbing). Another problem is the formation of fungus, mold and constant humidity, resulting in a specific smell in the bathroom.

So what is condensation? This is moisture that appears from the influence of cold water with a temperature of 6-10 degrees on the surface of the ceramic tank on one side (internal) and room air having a temperature of 20-24 degrees, acting on the outside. To eliminate this problem, you need to understand the cause and know how to eliminate it.

Most often there are two reasons: humidity in the bathroom and a large difference in temperature between the surface of the cistern and the surrounding air.

Condensation forms at the “border” of warm and cold air, so a difference of 12-15 degrees between the walls of the tank and the air is sufficient environment for moisture to form.

The following phenomena can be a source of increased humidity and differences in degrees:

• Lack of proper ventilation in the bathroom;
• pipe failure;
• riser in a room with constantly circulating water;
• hanging laundry to dry;
• malfunction of the shut-off valves of the tank, which causes increased water consumption;
• penetration of air with increased dampness from the street through cracks in door or window openings;
• marriage committed during finishing works: waterproofing of walls or ceilings that does not meet standards, illiterate installation of double-glazed windows.

And also the primary source and reason why the tank “sweats” may be a combined bathroom with a bathtub.

Malfunction of tank shut-off valves

Condensation can accumulate on the surface of the tank due to the continuous flow of cold water because the drain mechanism is faulty. This leads to filling in the toilet, thereby reducing the temperature on the surface of the walls of the tank due to cold water.

There is only one way out - repairing components or replacing all fittings. In addition to eliminating condensation, repairing the drain tank device will save a lot of water. This is especially important for users who have water meters.

Consequences of condensation

The constant presence of moisture on the surface of the drain tank is not only a small nuisance - it a big problem, which in a few years can cause a lot of discomfort for the safe living of the family.

This is fraught with the following consequences:

• The microclimate is deteriorating;
• condensation promotes corrosion on metal elements;
• any redecorating made with expensive materials will be reduced to zero due to prolonged exposure to moisture;
• Mold and mildew will appear in the room.

And if you leave the bathroom unattended for a long time, then puddles formed from condensation can penetrate to the neighbors on the lower floor. And this threatens not only damaged relations with them, but possible financial expenses for repairs.

How to get rid of condensation on a toilet tank?

There are several options and methods to eliminate this phenomenon.

Tank modernization

Often the formation of condensation is eliminated by various manipulations with the drain tank:

• Method No. 1. Repair of the locking mechanism inside the container. Due to an incorrectly adjusted float, the valve does not close and endless circulation of cold water occurs.

Note: When water is frequently drained and, accordingly, the tank is filled, an increased amount of condensate also forms, since cold water does not have time to warm up to room temperature.

• Method No. 2. Replacing a conventional tank with a double wall cistern. This is the most reliable option, but it is not suitable for all users due to its high cost.
• Method No. 3. And now stores sell special plastic inserts made in the shape of a tank. They just need to be inserted inside the container, while the flushing and water supply mechanisms do not need to be removed.

Double wall cistern

Manufacturers of current toilets understand the problem with condensation and recommend their own options. There are many on the market now different models plumbing fixtures with a modified tank design that prevents them from getting wet.

The improvement lies in the manufacture of products with double walls. It practically reduces the formation of moisture on the outer surface of the tank to zero. This type of drainage tank is equipped with a special plastic tank inside.

Attention! Plastic has low thermal conductivity, and besides, its walls have little contact with the inner surface of the ceramic tank. As a result, the temperature of the earthenware tank is constant.

Thanks to this design with a reservoir built inside, there is no liquid remaining on the walls of the external earthenware tank.

Thermal insulation of the tank yourself

Some home craftsmen insulate the tank from the influence of cold water by using insulation that is glued to the inside of the tank.

To do this they use:

• foamed polyethylene 6-8 mm thick
• silicone sealant
• waterproof glue
• stationery knife
• roulette
• 10 mm wrench and socket wrench.

For these purposes, tepofol, foamed polyethylene, polystyrene foam, etc. are used. Insulation is effective method removing “fogging” from the tank. The basic rule to follow is
This is to use a material with a thickness of no more than 10 mm, otherwise the volume inside will significantly decrease.

To thoroughly insulate the walls of the earthenware container, it will be more convenient to remove it and remove all the internal fittings. Rinse and dry the tank. Then prepare the patterns. In order not to be mistaken in size, it is easier to cut and fit first on thick cardboard, and then transfer it to the insulation.

Glue the blanks with any waterproof glue, and coat the joints with sealant, and you need to apply the insulating material not only to the wall, but also to the bottom of the tank. After drying, install the container, assemble the accessories, turn on the water and put the modernized product into operation.

Another option for insulation is external insulation. But at the same time, you need to take into account that it is easier to paste heat-insulating material on the outside without gaps, but it is more difficult to design aesthetics.

Therefore, you can buy a compact toilet with a tank, which you can install in a niche in the wall. And then it can be insulated with any material, and then covered with cladding. But this is an off-budget option, and it is not suitable for everyone.

Half flush

A good way to eliminate condensation is to mix cold and warm water(this option is possible in autonomous heating systems).

A second similar solution to the problem would be to use the release of half the volume of water by pressing the button twice or using the second key.

Changing the microclimate of the room

Along with measures to remove condensation in the bathroom or with a shared bath, an option is used to change the microclimate. This includes natural or artificial ventilation. If there is a gap at the door or window, then you don’t have to think about the influx.

You just need to check the hood in the ventilation duct. To do this, just bring a match or a lit piece of paper. If the flame does not deviate towards the passage, then there is no draft, and then we must try to figure out the reason: the mesh is dirty, the channel is blocked, etc.

At the same time, we must not forget that the natural hood in the bathroom must be large. Undoubtedly, the lower the speed of air movement, the larger the cross-section the well must be for its outlet. And no one will deny that in forced ventilation air exchange occurs faster.

This rule is reflected even in SNiP standards: the air speed for a conventional hood should be up to 1 m³/h, and for forced ventilation - from 2 to 4.5 m³/h. Therefore, for a room of the same area, the dimensions of the ventilation shafts should be different.

For example, to transmit an air flow of 300 m³/h you need:

• at forced circulation– well size 170×200 mm;
• with a simple hood, it should be increased to a section of 260x400 mm.

Thus, if all attempts to restore natural exhaust in the toilet fail, then you need to set up forced ventilation.

Air dryers

Another way to reduce the level of humidity in the bathroom is to install a dehumidifier. It absorbs excess moisture, while it collects in a tray located below.

Moreover, the device operates until the required humidity levels in the room are reached. The operation of the dehumidifier directly depends on the readings of the hygrometer mounted inside.

Heating water in the cistern

To get rid of moisture on the walls of the tank, they often use an increase in the temperature of the water in the tank. In principle, everything is understandable: if there is no difference between the temperatures of the incoming water and the surrounding air in the toilet, then there will be no condensation.

In fact, the following options are used to implement this method:

• Option #1. Instead of cold water, a hot water pipe is connected to the drain tank. Even if the temperature of such incoming water is high, when mixed with the water in the container, it becomes close to room temperature. This solution to the problem is suitable for those users who do not have a water supply meter installed.
• Option #2. Construction of a heat exchanger. To do this, you can use a hot water riser that runs inside the toilet. You just need to wrap a copper tube around it and put insulation on top. Connect one end of the tube through a tee to a pipe with cold water, and direct the other into the drain tank.

Attention! Water, passing through a coil around a hot pipe, heats up by 3-4 degrees, sometimes this is enough to prevent condensation from forming on the tank.

• Option #3. Install a water heater in the bathroom and make a connection from it.

Forced ventilation

Before removing condensation from the toilet tank, you first need to create the proper ventilation level in the toilet. This requires two components: air inflow from external rooms or from the street and its exit through ventilation ducts.

In case of insufficient air exchange during natural exhaust, forced ventilation is installed. Fan performance is usually taken according to the average data of SNiP standards. Taking these indicators from the table, it is clear that for the toilet room the air speed should be 50 m³/h.

Thus, according to experts, there is only one fundamental way to deal with condensation - by creating fresh ventilation.

It is unlikely that there will be at least one housewife who would be satisfied with a wet tank in the bathroom. Solving this problem takes a little time and with the right approach you can permanently eliminate the appearance of condensation on the flush tank.

Why is there condensation on the toilet cistern: reasons for its appearance

Protruding condensation on the toilet tank can cause more serious problems in the bathroom. Puddles of water near the toilet are not the biggest of them.

Constantly accumulating moisture can become a source of dampness and, accordingly, fungus and mold in the toilet.

Before fixing the problem, you need to identify why condensation is constantly collecting on the tank.

Causes:

1. Faulty cistern fittings. The drain valve lets through - water from the tank flows into the toilet, and new water immediately gets in. The constantly changing volume of water cannot warm up to room temperature and drops of water will appear on the tank.
2. Increased humidity in the room.
3. A poorly functioning ventilation system leads to poor air circulation in the bathroom.
4. The difference in temperature between water and air in the room. If there is a difference of 10 degrees or more, condensation will definitely appear on the walls of the tank.

In addition to condensation on the drain tank, drops of water can also be seen on water pipes, which can lead to rust and an unsightly appearance.

So that you don't have to deal with it later excess moisture on the tank, it is better to follow a few simple tips.

Prevention measures:

• Ventilate the bathroom;
• Install a forced ventilation system;
• Monitor the serviceability of the tank;
• Buy a tank with a half-flush function.

If condensation forms on the walls of the toilet and pipes, daily cleaning of the room will not hurt. It is enough to wipe the tank and water supply dry once a day so that moisture does not accumulate in large quantities.

Condensation on the toilet: what to do with the tank fittings

Failure of the cistern shut-off valves can cause the toilet cistern to “cry”. In addition, if the apartment has a water meter, a faulty tank will cause high flow rate water. If the flush mechanism breaks down, the water drawn into the tank flows directly into the toilet without interruption. Constantly replenishing the tank with cold water does not allow the earthenware tank to warm up to room temperature. The temperature difference leads to the accumulation of sweat on the surface of the toilet bowl .

A faulty tank can cause damage to your bathroom renovation or, even worse, flooding your neighbors.

Most often, the float fails and stops shutting off the water supply from the pipe.

This problem can only be solved after repairing the insides of the tank or completely replacing them. Many owners are able to resolve this issue on their own, without calling a specialist from the housing office.

However, there is no guarantee that if the tank is in working order, the condensation will completely disappear. Frequent use of the toilet - constant flushing - can also lead to the accumulation of moisture on the surface. To reduce the volume of water poured into the toilet, you can adjust the tank fittings or reduce the water pressure by tightening the tap on the water pipe leading to the tank.

The toilet cistern is sweating: what to do about this problem

Heavy condensation that appears on the flush tank not only spoils the lining and appearance of the plumbing, but can also cause a flood. The most radical way to get rid of the released moisture is to cover the tank with any material that retains heat.

How to remove condensation if the tank is fogged up:

• Repair the tank and its fittings to prevent water from leaking through;
• Save water when draining;
• Increase the temperature of the water entering the tank in winter;
• Install ventilation and dehumidifiers to reduce humidity in the toilet.

Poor air circulation in the toilet leads not only to the appearance of unpleasant odors, but also to the formation of condensation on the walls of the tank and water pipes. This problem can be eliminated by installing a special fan.

You can lower the temperature in the bathroom, but this is possible in apartments and houses with autonomous heating. To do this, you need to lower the heating temperature of the boiler. With central heating, you can lower the temperature by insulating the pipes, which will look unaesthetic.

Lowering the temperature by a few degrees will be enough to get rid of condensation and unnecessary humidity in the bathroom.

Recently, toilets with double-walled tanks have been gaining popularity in the plumbing market - they never sweat, but the price of these models is much higher than usual.

Why do you need a double tank toilet?

If you are tired of the constant humidity in the toilet due to accumulated condensation on the plumbing, you can replace the toilet and pipes with more modern models. A comfortable, modern toilet with a double tank will be an excellent replacement for your old “faience friend”.

A double cistern toilet consists of an outer ceramic cistern and an inner plastic cistern, with a small air space formed between the walls.

This structure of the tank prevents condensation from accumulating on the surface. The only drawback of a double-cistern toilet is its high price.

If desired, you can install a special plastic container inside the ceramic tank, exactly repeating the shape of the flush tank. The double wall is a bit of a toilet wall to prevent condensation. It is important to remember that this will reduce the volume of the tank slightly.

Where does condensation on the toilet tank come from and how to get rid of it (video)

If, after all the measures taken, the toilet tank is still sweating, it is best to seek qualified help. You may need to clean the ventilation system or install a fan heater that will dry the air, lowering the humidity level in the room.