home Construction

Why is the toilet bowl wet? Why does the toilet cistern sweat: causes of fogging and how to eliminate them. Using a double wall tank

The toilet cistern is sweating - this trouble can catch every master who has a toilet bowl at home, whether it is a modern model or an outdated Soviet "representative". The condensate that begins to appear on the tank will cause a lot of problems - high humidity in the toilet, constant puddles on the tiles and other troubles that cause discomfort.

Repair measures will help to avoid the appearance of mold, fungi, harmful microorganisms and a number of unpleasant odors that will negatively affect the condition of the premises and human health. Undoubtedly, you can simply constantly wipe the plumbing, eliminating drops of condensate with a rag and sponge. But the masters still recommend delving into this issue and finding the root of the problem.

The first step is to study the causes of this malfunction so that, based on the knowledge gained, we can repair it ourselves.

Reasons why the toilet bowl sweats

If your toilet cistern is sweating, you must first examine the causes of a possible malfunction:

The first and most common cause of condensation is high levels of humidity in the toilet. High humidity in an apartment can even arise from plants abundantly located in rooms - they constantly require watering;
A possible manifestation of moisture is caused by constant washing and drying clothes in large quantities (if you have a large family, washing volumes are always large). In some cases, moisture settles on the tank due to leaking pipes and connections;
Poor ventilation, which does not allow the room to dry quickly;
Constant flowing cold water in the tank. Faulty shut-off valves will not allow the water to warm up to normal room temperature, as a result of which moisture will appear on the walls of the plumbing.

To understand the source of the malfunction, you need to study the laws of physics a little. According to them, warm streams air, in contact with the tank with cold water will definitely turn into droplets of moisture.

Often, the problem can only be solved by arranging high-quality, good ventilation that dries the air in the toilet. Also, the solution to the problem may be hidden in the tank itself, more precisely in the water, the temperature of which needs to be increased.

Faulty ventilation - we solve the problem

Initially, you need to deal with the ventilation system in the room. Each room with high humidity (toilet, bathroom and kitchen) has ventilation windows.

These holes in the walls are designed for high-quality circulation of fresh air. It will be a real mistake if during the repair you close this window with finishing materials or simply get rid of it by laying it with a brick or.

Air flow quality can be improved by installing additional modules such as hoods and fans. In order not to spoil the appearance of the room after repair, the craftsmen recommend fixing a beautiful decorative grille on the vent, which, if necessary, can be easily removed.

Thanks to a wide range of decorative gratings (different both in shape and color), you can buy sanitary ware for any design. It should be noted that before installing a new grate, care should be taken to clean the ventilation unit.

Shut-off valves - we repair ourselves

The reason may lie not only in ventilation system premises, but also in faulty shut-off valves. A faulty mechanism leads to the fact that cold water in the tank flows continuously, not having time to infuse. As a result, flows of cold water lead to the appearance of condensate on the tank.

To solve this problem, not having the skills to work with toilets, you can call plumbers. If you understand drain systems, then make repairs yourself - this way you can save a lot on calling a plumber. In total, there are two solutions to the problem - complete replacement of reinforcement or local repair of structural elements. Much of the repair will depend on the model of plumbing.

Modern toilets are not designed for "local" repairs and spare parts are not available for them. You will have to buy the whole set of valves.

If you sort out faulty structural elements and make repairs on site, such a solution is an obvious plus - it will be possible to reduce increased consumption cold water. This solution is relevant for apartments with meters.

Double walls - faults on complex models

We looked at several solutions to fix this problem. Many manufacturers have taken into account the possibility of such troubles and have developed tanks with double walls, which help to eliminate the possible occurrence of condensate.

A feature of such tanks is that a special plastic container is installed inside. It does not come into contact with the "outer" shell of the tank and thus forms an air cushion. Such a constructive solution ensures a constant water temperature in the tank and completely eliminates the appearance of moisture on the walls.

This type of drain cisterns will avoid problems with the occurrence of moisture on the walls of plumbing, but there is another problem. Not everyone can afford to buy such a tank, due to their high price in the market of toilets and plumbing.

If you are a real master, then you can easily make a “double” wall yourself. Some experts suggest pouring waterproofing materials over the inner walls of the product.

For such activities, liquid types of waterproofing are used, such as mastic, etc. It is not recommended to use adhesive materials that can improve the quality of the toilet bowl - the effectiveness of such measures will be zero. Since after 1-2 days the insulation will fall off and will float in the water.

Do-it-yourself cistern modernization

As mentioned earlier, the main problems with the "wet tank" are:

The appearance of fungus, mold and other microorganisms in the toilet;
The appearance of an unpleasant amber. Which is very difficult to get rid of.

If condensation appears on the walls of the device, do not delay the repair. If you cannot figure out the device of the toilet, do not “break” it. Contact a plumber who will quickly fix the problem that caused the problem.

All the above methods of self-elimination of the malfunction have been tested by both masters and plumbers and have proven their effectiveness. It is possible that there will be problems with the drain tank - there is a huge variety on the market, which are very difficult to repair due to an inconvenient, unknown design.

You can get rid of moisture on plumbing by buying even a simple fan that works like a hood. Such a solution will allow you to save a lot and not spend money on calling the masters. Even the climatic conditions in your area can have a noticeable impact on plumbing and the microclimate in the apartment as a whole.

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

Why condensation on the toilet tank: causes

The protruding condensate on the toilet bowl can be the culprit of more serious problems in the bathroom. The puddles of water near the toilet are not the biggest of them.

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

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

The reasons:

Faulty drain valve. It skips the drain valve - water from the tank flows into the toilet, and a new one immediately gets. The constantly changing volume of water cannot warm up to room temperature and drops of water will appear on the tank.
Increased indoor humidity.
A poorly functioning ventilation system leads to poor air circulation in the bathroom.
Temperature difference between water and air in the room. With a difference of 10 or more degrees, condensate 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 ah, which can lead to rust and an ugly appearance.

So that later you do not have to deal with 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 health of the tank;
Purchase a tank with a half-flush function.

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

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

Malfunctions of the cistern valves can cause the toilet cistern to "cry". In addition, if there is a water meter in the apartment, a faulty tank will cause a large flow of water. If the drain mechanism breaks down, the water drawn into the tank flows without interruption directly into the toilet. The constant replenishment of the tank with cold water does not allow the earthenware tank to warm up to room temperature. The temperature difference leads to the fact that sweat accumulates on the surface of the toilet .

A faulty cistern can cause damage to a bathroom renovation or, worse, flood your neighbors.

Most often, the float fails, which ceases to shut off the water supply from the pipe.

This problem is solved only after the repair of the inside of the tank or their complete replacement. 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 with a working tank, the condensate 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 bowl, you can adjust the cistern fittings or reduce the water pressure by screwing on the tap on the water pipe leading to the cistern.

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

Strong condensate that appears on the cistern spoils not only the lining and appearance plumbing, but can also cause a flood. The most radical way to get rid of escaping moisture is to glue the tank with any material that retains heat.

How to remove condensate if the tank is fogged up:

Repair the tank and its fittings from water leakage;
Save water when draining;
Raise the temperature of the water entering the tank in winter time;
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. You can fix this problem 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 degree of heating of the boiler. With central heating, you can lower the temperature by insulating pipes, which will look unaesthetic.

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

Recently, double-walled toilet bowls 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 toilet with a double tank

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

The double cistern of the toilet bowl consists of an external ceramic cistern and an internal plastic one, between the walls of which a small air space is formed.

This structure of the tank does not allow condensate to accumulate on the surface. The only downside to a double cistern toilet is that it's overpriced.

If desired, you can install a special plastic container inside the ceramic tank, exactly repeating the shape of the flush tank. Double wall slightly wall of the toilet against condensation. It is important to remember that in this case the volume of the tank will decrease slightly.

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

If, after all the measures taken, the toilet bowl 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 level of humidity in the room.

Condensation falling out on the toilet bowl puzzles many homeowners. Due to the constantly flowing water droplets from the surface of the drain tank, puddles form on the floor, which must be wiped up in a timely manner. Otherwise, dampness will lead to mold and bad smell. Of course, you can adapt some container to collect water, and then do not forget to empty it of the contents in time. Many housewives do just that, trying to solve this problem in this simple way. Men try to find out why the toilet cistern is sweating in order to eliminate the cause and forget about the problem forever. Are there effective ways struggle with the condensate periodically appearing on the toilet bowl? Let's figure it out.

Causes of condensation on the drain tank:

High level of humidity in the bathroom and in general in the whole apartment. High humidity may be due to a large amount indoor plants, drying a large number wet laundry, leaks in plumbing pipes or heating systems and other factors.
The incessant flow of cold water into the toilet bowl for a second due to a malfunction of the valves, as a result of which the water does not have time to warm up to room temperature.

To understand why the toilet cistern is sweating, you need to remember a little the 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 it is necessary to look for ways to dry the air, as well as to increase the surface temperature of the drain tank.

Checking the condition of the vents

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

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

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

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

Repair of faulty valves

If the mechanism of the drain device breaks, then the water in the toilet flows without stopping. This leads to the constant replenishment of the tank with cold water, which reduces the temperature of its surface. In this case, the condensation process is ongoing. The problem can be eliminated only during the repair of valves or its complete replacement. To carry out repairs on their own or invite a plumber, each homeowner decides independently, based on the financial capabilities of the family.

In addition to partially eliminating the problem of condensate, repairing the drain mechanism of the tank will save water consumption. This is especially true for owners of those apartments in which metering devices are installed - water meters.

Double wall cistern

Manufacturers of modern toilets are aware of the problem of condensation and offer their own effective solution. The latest models of toilet bowls are produced with an improved design of the drain tank, which does not allow them to “cry”.

The double-walled flush cisterns of today's toilets 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 are still inaccessible at a cost that is several times higher than the price of conventional toilet bowls.

Some amateur craftsmen try to isolate the walls of the tank from exposure to 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 condensate.

Some amateur craftsmen are trying to deal with condensate on the tank by pasting its inner walls with heat-insulating material

If expensive "non-crying" models are still too expensive for you, then try installing forced ventilation. Even a simple fan inserted into the ventilation window and turned on when the light in the bathroom is turned on will solve the problem of condensation on cold surfaces. If after that the toilet bowl sweats, then call specialists to install more powerful ventilation systems.

Drops of liquid, and sometimes large streaks on the flush tank in the toilet, are not uncommon. Gradually accumulating on the floor, such moisture needs frequent cleaning, in addition, condensate on the toilet bowl leads to corrosion of water pipes (with old plumbing). Also, the formation of fungus, mold and constant humidity becomes a problem, as a result - a specific smell in the bathroom room.

So what is condensate? This is moisture that appeared from the influence of cold water with a temperature of 6-10 degrees on the surface of the ceramic tank on one side (inner) and room air, having a temperature of 20-24 degrees, acting from the outside. To eliminate this trouble, 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 temperature difference between the surface of the drain tank 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 to create moisture.

The source for the increase in humidity and the difference in degrees can be such phenomena:

Lack of proper ventilation in the bathroom;
pipe failure;
a riser in a room with constantly circulating water;
hanging clothes to dry;
malfunction of the shut-off valves of the tank, due to which increased water consumption;
penetration of air with increased dampness from the street through cracks in door or window openings;
marriage made during finishing work: 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” can be a combined bathroom with a bathtub.

Tank valve failure

Condensation can accumulate on the surface of the tank due to the incessant supply of cold water, because the drain mechanism is faulty. This leads to filling and into the toilet, thereby, due to cold water, the temperature on the surface of the walls of the tank decreases.

There is only one way out - repair of component parts or replacement of all fittings. In addition to eliminating condensate, 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 is a big problem that in a few years can cause a lot of discomfort for the family to live well.

This is fraught with the following consequences:

The microclimate is deteriorating;
condensate contributes to the occurrence of corrosion on metal elements;
any cosmetic repairs made with expensive materials will be reduced to zero due to prolonged exposure to moisture;
mold and fungus will appear in the room.

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

How to get rid of condensation on the toilet bowl?

There are several options and ways to eliminate this phenomenon.

Tank modernization

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

Method #1. Repair of the locking mechanism inside the tank. Due to an incorrectly adjusted float, the valve does not close and there is an endless circulation of cold water.

Note: With frequent draining of water, and, accordingly, filling the tank, an increased amount of condensate also forms, since cold water does not have time to warm up to room temperature.

Method #2. Replacing a conventional tank with a double wall cistern. This is the most reliable option, but it is not acceptable for all users due to the high cost.
Method #3. And now special plastic liners made in the shape of a tank are sold in stores. It remains only to insert them inside the container, while the flushing and water inflow mechanisms can be left out.

Double wall cistern

The manufacturers of today's toilets understand the problem with condensation and recommend their own options. Now on the market there are many different models of plumbing fixtures with a modified tank design that prevent 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. Such a drain tank is equipped with a special plastic tank inside.

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

Thanks to this design with a built-in tank inside, there is no liquid left on the walls of the external faience tank.

Thermal insulation of the tank yourself

Some home craftsmen isolate the tank from the influence of cold water due to insulation, which is glued from the inside of the tank.

For this they use:

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

For these purposes, tepofol, foamed polyethylene, polystyrene, etc. are used. effective method removal of "fogging" on the tank. The basic rule to follow
it is to use a material with a thickness of no more than 10 mm, otherwise the volume inside will noticeably decrease.

In order to carefully isolate the walls of the faience container, it will be more convenient to remove it and remove all internal fittings. Rinse and dry the tank. Then prepare 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 workpieces to any waterproof glue, and coat the joints with sealant, and insulating material must be applied not only to the wall, but also to the bottom of the tank. After drying, install the container, assemble the fittings, turn on the water and put the upgraded product into operation.

Another option for insulation can be external insulation. But it must be borne in mind that it is easier to glue on the outside thermal insulation material without gaps, but it is more difficult to arrange aesthetics.

Therefore, you can buy a compact toilet bowl with a tank, which is installed in a wall niche. And then it can be insulated with any material, and then closed with a 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 systems heating).

The second similar solution to the problem would be to use the descent of half the volume of water by double pressing the button or using the second key.

Changing the microclimate of the room

Along with measures that act to remove condensate in a bathroom or with a shared bathroom, a variant with a change in the microclimate is used. This includes natural or artificial ventilation. If there is a gap at the door or window, then you can not think about the inflow.

It is only necessary 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 thrust, and then you need to try to figure out the reason: the grid is dirty, the channel is cluttered, etc.

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

This rule is reflected even in the 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 the same area of \u200b\u200bthe room, the dimensions of the ventilation wells must be different.

For example, to transfer an air flow with a volume of 300 m³ / h, you need:

with forced circulation - a well with a size of 170 × 200 mm;
with a simple hood, it should already be increased to a section of 260 × 400 mm.

Thus, if all attempts to restore the natural exhaust in the toilet failed, 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 is collected in a tray located below.

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

Heating water in a tank

Getting rid of moisture on the walls of the tank, often used to increase 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 ambient air in the toilet, then there will be no condensation.

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

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

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

Option number 3. Mount the water heater in the bathroom and make an eyeliner from it.

Forced ventilation

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

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

Thus, to deal with condensate, according to experts, it is fundamentally possible in only one way - by creating forced ventilation.

The toilet bowl is sweating. There is a lot of condensate, it starts to drip onto the floor, forms puddles, and since the ceilings in the houses are not at all airtight, it seeps to the neighbors from below. Both you and them have dampness, which contributes to the appearance of an unpleasant smell, fungus and mold. The ceiling, saturated with moisture, begins to gradually collapse, and someday a fragment of the ceiling may collapse on the neighbors, and a hole will appear in your floor.

Very often, the occurrence of condensate on the toilet cistern spoils not only good mood but also good relations with the neighbors below.

In addition, condensate appears on the drain tank and on the pipes adjacent to it. If these pipes are steel, without an anti-corrosion coating (and in old houses it is), then the pipes will begin to rust.

The toilet cistern sweats especially often in winter. The reason for this is easily explained: water enters the container from the water supply, the temperature of which is only 3-5 ° C, and in the apartment the temperature is 10-15 ° C higher. The humidity of warm air is quite high, because of this, water droplets (dew) will immediately appear on the drain tank, and it does not matter which tank: ceramic, cast iron or plastic. In order to prevent the appearance of condensate, or at least reduce it, you should look for the cause of its formation and try to eliminate it.

Causes of condensation on the drain tank

Scheme of the device of the drain tank.

The main cause of condensation is high humidity in the bathroom. And the cause of high humidity in the toilet can be too hermetically sealed Entrance door. To fix this, you can make holes in the door.
Another reason for the accumulation of dew on the drain tank may be a breakdown of the locking mechanism. Continuously flowing water lowers the temperature of the water in the drain tank. When the malfunction is eliminated, the water temperature will rise and dew will cease to form.

Ways to eliminate condensate

To keep the toilet cistern from sweating, you can install a mechanism with a double button toilet flush system. This makes it possible to use both all the water from the tank (6-7 liters), and part of it. In this way, water drain can be reduced, which will simultaneously reduce water consumption and reduce condensate on the drain tank.

Checking the ventilation ducts

Scheme of the main elements of the tank: 1 - float valve, 2 - pear combined with overflow, 3 - thrust, 4 - float, 5 - water level.

To eliminate humidity and make the air drier, you should clean the special ventilation holes that are available in any apartment. Chasing the beauty of the interior, many residents of houses close these holes with various finishing materials (for example, wallpaper), but this cannot be done. To decorate the ventilation windows, you can buy special decorative grilles of different colors, shapes and designs. Before installing these decorative grilles, it is necessary to clean the ventilation ducts from debris. It is better to invite relevant specialists for this.

You can use another option: to make additional ventilation - instead of a grate, install a fan that will start working when the light in the toilet is turned on. This will also partially solve the problem with the formation of condensate.

Repair of faulty valves

If the mechanism of the drain tank breaks down, water flows into the toilet bowl continuously. The toilet cistern is constantly filled with cold water, and this reduces the temperature of its surface, which is why dew is constantly present. To get rid of it, you need to repair the valves or completely replace it. Do repairs yourself or call a plumber, each owner decides for himself, evaluating his capabilities.

In addition to partially getting rid of condensate, the repaired toilet cistern will reduce water consumption. This is especially important for owners of apartments with water meters.

Another way to eliminate dew is to purchase a double-walled cistern. The production of modern toilet bowls takes into account the problem of condensate and offers its own productive solution. At this time, they began to produce new models of toilet bowls, in which the double-walled cistern does not sweat at all.