Toilet water valve. Shut-off valve for the toilet: types, design, installation instructions, malfunctions, selection

By pressing the button on the toilet bowl, we probably do not know how exactly the mechanism that drains water from the tank functions.

But sometimes such knowledge can come in handy - in case you need to replace or repair this device.

Moreover, this question is quite relevant - often even the highest quality and most expensive models may require adjustment or repair after a few years of operation.

Mechanism device

First of all, let's figure out how the shut-off float valve for flushing the toilet is arranged.

If you lift the lid of the tank (a container that actually contains water), you will see an intricate plastic construction. In fact, the device of this mechanism is quite simple.

First, let's look at what exactly is included in the system.

1. A device that maintains the water level in a tank. This float valve plays the role of a shut-off valve, having only two positions - open or closed. In the open position, the inlet lets water through, filling the tank. When a certain level is reached, the shut-off valve closes, preventing the further flow of water to fill the tank.
2. Water draining device. The drain valve on the toilet, in fact, is activated when we press the button (well, or pull the lever - depending on design feature model) - it opens the hole, while draining the water into the toilet.

Now let's take a closer look at exactly how the aforementioned tank nodes function.

The inlet float valve for the toilet is a design consisting of a shut-off valve with a float that is connected to a lever.

The float is held on the surface of the water, thereby allowing the mechanism to determine the liquid level for the tank. Moving up (when the level starts to rise) or down (when the water drains), the float pulls the lever.

It, in turn, is connected to the valve itself, which is also driven.

Thus, the float either opens the inlet valve (when there is no water in the tank, and the float is at its lowest point), or closes it (when the liquid has already filled the container to the desired mark).

check valve drain tank the toilet is arranged differently. It is, in fact, a siphon and a lever. Siphon - closes drainer when the toilet is not in use. It is made of rubber, and structurally resembles an ordinary plunger, only of a smaller shape.

This shape allows you to tightly and securely close the hole, preventing water leakage. The lever, which is connected to the siphon, is also connected to the handle that we press to drain (it doesn’t matter how it is made).

Pressing the button (or pulling the handle) sets it in motion, and it pulls the inlet siphon, which opens the hole where the water flows.

In addition to the mechanisms described above, one more device should be highlighted, which is also useful in plumbing repair work. The task of the node is to prevent the reverse flow of water.

Reverse protection

Such a problem can happen due to a clogged sewer pipe with a lower supply.

In this case, you run the risk of getting a not too pleasant surprise - the entire contents of the sewer will rise up, and if you do not notice and prevent the situation in time, it will end up on the floor of your bathroom.

So it's always easier to buy a bottom inlet check valve for a toilet than to run into a similar problem.

The principle of its operation is the same as that of the check valves that are installed on water pipes and any other systems. The reverse locking mechanism, located in the body, assumes and allows only movement in one - the right - direction.

With normal progress, the reverse mechanism (it can be a flap or a ball) rises and does not interfere with the passage. In the event of a turn and reverse flow of fluid, the damper lowers and closes the assembly.

About types and differences

The toilet cistern valve can have a number of differences in several ways. Let's list which ones.

According to the mode of operation - the valve on the drain tank can now drain both the entire volume of water and part of it. This allows you to save liquid - since it is not always necessary to use all 8-10 liters contained in the container.

Such an opportunity appeared relatively recently - the old mechanisms only allowed to drain all the water.

One more nuance has already been mentioned above - this is the constructive principle of influencing the lever. It can be a button (this option is used on most modern models) or the reverse lever that was used before.

An even older version with a lower supply is a pull handle, which was required not to be pressed, but, on the contrary, to be pulled up (or down, by the rope). Now there are practically no models in this design on the market.

But push-button devices can be divided again - the possibility of complete and incomplete draining was also mentioned above. This is exactly what was discussed. Let's make a list of what mode the buttons can work in:

• The button for completely draining water is a regular button that can only drain the entire tank at once;
• Full and small drain button - in this case, partial pressing of the button drains some part (how much - you can adjust), and full - all the water;
• A button that allows you to stop the drain - in such models, pressing once, you open the drain, pressing the second - closes.

The material itself, from which the levers are made, which set the mechanism in motion, may also differ. Since the device is in contact with water, either plastic or bronze is used to create such parts.

The first option is cheaper, but less durable, the second is, of course, more expensive, but also stronger and more durable.

And finally, it is necessary to mention the differences in the device and the principle of operation of the float - the part that "monitors" the water level and blocks its flow when the tank is full.

Possible variations are as follows:

• Float type "Croydon". This is an outdated model, which has now been replaced by a more reliable reverse piston mechanism.
• Piston type float. An improved version of the previous paragraph. Now - the most common solution: it is installed in tanks of almost all manufacturers. Structurally, the valve is controlled by a piston, which is attached to a lever (which, in turn, is connected to a button). It is the piston that moves, closing or opening the drain hole.
• Float membrane type. A more modern alternative to the piston, but not yet very popular. The only difference is that instead of a piston, in this case, the drain is blocked by a membrane, rubber or silicone.

Since it was mentioned above check valve- attention should be paid to its varieties. This device may differ in the design of the obturator:

• "curtain";

...and by location on the pipeline:

• vertical check valve;
• horizontal valve.

Finally, let's touch on at least interesting question about at what price you can approximately buy a toilet valve. The numbers are roughly as follows:

• a valve with a button that provides only a complete drain - about $ 18-20;
• a valve with a button that allows you to stop the drain - about $ 25-30;
• valve with a two-mode button - about $ 22-25.

The price of a non-return valve for a toilet bowl, having a diameter of 32 mm and made of steel, is about $ 15-18.

How to install? (video)

How to install?

The installation of the valve can be handled and on their own without calling a plumber. For this, consider milestones and details of the work:

1. The base of the drain device is attached. Between its base and the bottom it is required to place without fail rubber gasket(it comes with fittings) - so that the tightness of the connection is as high as possible.
2. We connect a line to the inlet fittings through which water will flow into the tank. For these purposes, plumbing pipes are used. To increase the tightness and reliability of the connection, it is recommended to use a FUM tape.
3. The float is being adjusted (more on that below).
4. The mechanism for draining water from the tank is removed through its top cover, through the corresponding hole.

Now let's mention the nuances of adjusting the float. When buying a toilet, this mechanism does not require adjustment, since everything has already been done by the manufacturer.

But if you are installing a new valve, then you will have to worry about this as well. It should be remembered that the water level in the tank should be slightly below the inlet.

If you have a tank model with a lower water supply, then the level should be approximately 10-15 cm lower than the upper edge of the tank.

As for the adjustment itself, it is performed by moving the float between the two bars to which it is attached.

Toilet cisterns can be made from different materials, can be various shapes and differ in the method of installation, but their principle of operation is practically the same, and the design of all drain tanks does not differ very much. Let's look at what types of such mechanisms are.

According to the installation method, drain tanks are divided into only three types:

1. The tank of the compact system, which is installed directly on the toilet bowl itself;
2. A wall-mounted cistern, most often used in conjunction with wall-hung toilets;
3. A hanging cistern that is mounted at a certain height and connected to the toilet bowl through a drain pipe.

Features of the mechanism for supplying water to the drain tank

All drain tanks have only two main structural elements - this is a water supply mechanism and drain mechanism. The water collection system can be made in two versions:

• with side feed;
• with bottom feed.

The first are float valves designed for tanks, the water to which is supplied to the upper side. These models are produced mainly by domestic firms, they are simple and low cost, but they create a lot of noise in the process of collecting water.

Scheme of the device of the toilet cistern

Such a valve includes two main parts - a body with a membrane in it, which closes and opens the water supply to the tank, as well as a float connected to the body by means of a lever. Thus, lowering and rising along with the water level in the tank, the float sets in motion the lever, which in turn acts on the stem with the membrane fixed on it, opening and blocking the access of water to the tank through the valve.

The mechanism with the bottom water supply is a little more expensive, but it also works much quieter. This system is somewhat more complex, in which the float moves along a special vertical rod, although the principle of operation itself has not changed. The mechanism for shutting off the water supply is actuated by means of a special rod connected to the float, which is also a water level limiter in the tank.

How to adjust the amount of water in the tank

When installing any of these systems, in order to save or increase the flushing force, the amount of water taken in can be changed. Let's tell you what steps you need to take to do this:

The device of the drain mechanism of the toilet bowl

The cistern drain system can be top or side. The latter, however, will not be considered, since it implies the presence of a hanging tank, which is now practically out of use. But upper system the drain is used on almost all models of modern toilet bowls.

Flush mechanism for the toilet

The procedure for installing the toilet cistern (video)

In the process, you should not have any difficulties, since everything is done very simply and quickly enough:

Possible malfunctions during the operation of the drain tank

1. Water is not supplied to the tank or its supply is not blocked. The culprits for this are either a water supply valve or a float. Floats are made either in the form of a hollow cylinder or an inverted glass. In the first case, the damaged float cannot be repaired, and the problem is eliminated only by replacing the float or the entire valve. With a float in the form of an inverted glass, only one trouble can occur - it is overgrown with mud and various deposits, because of which it starts to work poorly. In this case, it should simply be cleaned.

   Video

2. If the float is ok, but water does not stop flowing into the tank- the cause is a worn valve membrane. Usually a spare membrane comes with another float. If not available, it can be purchased separately. The protective cap is removed from the valve, after which the old membrane is removed and replaced with a new one. It is also useful to clean the small hole in the valve through which water enters the tank. If it is clogged, then, accordingly, tank stops filling or this process is extremely slow.

As you can see, there is nothing complicated in the toilet cistern, so if necessary, everyone can easily install or repair it.

In any modern residential building, apartment or office, an integral part comfortable conditions residence, work is the availability toilet room. The central place in this room is occupied by such plumbing device like a toilet.

The effectiveness of this device is determined by many factors - proper organization sewer system, observing all the nuances of connecting to the drain and water supply pipes.

But the main structural element of any toilet bowl is a drain tank, on the normal functioning of which ergonomics and ease of use depend. After all, if the flushing system fails, most of the advantages of arranging a toilet room within the living / working area of ​​​​the building are leveled. How is the toilet cistern arranged?

The classic fitting for the toilet cistern provides the presence of the following functional elements and devices:

• water tank with lid;
• button (or lever) control;
• water collection system;
• drain system;
• overflow system.

Mechanism for collecting water in a container

The second name of this node is a float valve. The main elements of this control mechanism are:

• stop valve;
• float;
• fitting with a water supply tube;
• float suspension rod.

The principle of operation of the float valve is as follows: When the water level in the tank falls below the set level (i.e., after draining), the float lowers, activating the water inlet valve.

Then the incoming liquid raises the float, and upon reaching the upper limit set float rod closes the valve by stopping the water supply.

The filler hole was gradually blocked, along with the rise of the float. Modern mechanisms allow you to cover it at the same time(upon reaching the float top position), which significantly increases the speed of filling the container.

There are two ways to organize the supply of water to the drain tank:. Most domestic models of tanks are made with a top connection. This method is somewhat easier to implement, but has one drawback - an increased noise level during the collection of water.

More advanced models of drain tanks are equipped with filling system with bottom connection. This option is almost silent, which greatly increases the comfort of operation. plumbing fixture. In addition, the bottom connection looks more aesthetic.

Installation of top connection fittings is carried out after, and bottom connection fittings are usually mounted before the procedure for fixing the tank.

Drainage device

The progenitor of the drain design was a scheme based on the use of a pear-shaped plug made of soft rubber. To operate the mechanism it was necessary to lift up the bar attached to the cork.

Modern designs are implemented somewhat differently. Today, the flush mechanism for the toilet cistern is a single system combined with a filling mechanism operated by a button or lever.

Moreover, the trend towards savings natural resources led to the emergence combined consisting of two parts. When you press the smaller segment, a small amount of water is drained, and when the larger one is activated, the tank is completely emptied.

In most cases, modern cistern flush fittings are made from inexpensive plastic. The main elements of the flush mechanism for the toilet are:

• drain valve;
• thrust.

The design and operation of the overflow

In addition to the above mechanisms, modern toilet cisterns are also equipped with an overflow system - safety device preventing overfilling of the tank and leakage of water to the outside to the premises in case of failure of the autofill system. It is a plastic overflow tube, usually part of the cistern drain system.

This tube is usually located vertically along the axis of the drain hole. The top edge with a bell for more efficient draining is located 10-15 mm from the maximum water level in the tank.

In case of occurrence emergency, that is, failure to close the inlet valve during the process of pouring water, overflow mechanism will send excess liquid to the toilet, thereby securing the floor surface of the toilet room and the finishing of a similar room of neighbors from below.

There are also modifications of valve sets for toilet flush tanks that provide a separate outlet for the overflowing liquid, but since they are not unified, that is, they are suitable only for specific, now obsolete models of toilet storage tanks, they are not relevant today.

What happens when a lever/button is pressed?

Initially, the rod is activated, which lifts the cork pear - the shut-off valve of the drain unit, as a result of which water from the storage tank freely enters the toilet bowl, washing it work surface and then enters the sewer. Then cork under the influence own weight falls into place blocking the flow of water into the toilet.

Simultaneously with the drop in the water level in the tank, the shut-off valve of the inlet mechanism opens and the tank is filled with working fluid. This process stops when the float reaches the top position, which usually set 20-30 millimeters lower side openings of the tank.

In this video you can get acquainted with the device and the principle of operation of the drain tank:

The most common faults

1. together threaded connections . It is usually caused by an incorrect connection (when the nut is screwed on skewed, loose) or failure.
2. Water flows non-stop from the tank into the toilet, i.e . There may be several reasons for this: the ingress of a foreign object between the drain hole and the plug, a skew or a violation of the tightness of the plastic float.
   

   Also common cause there is a loosening of fastening or breakdown of mechanical elements - plastic rods, float.

3. When the control button is pressed, the drain does not occur. This can be caused, again, by the appearance of significant backlash at the joints, breakage plastic elements systems. May be required.
4. - even after the tank is completely empty, the filling mechanism does not work. This occurs as a result of improper operation of the float or clogging of the intake membrane.

The device of a modern drain tank is by no means as complicated as it seems at first glance. Any person who is more or less versed in technology is able to study it, after which he will be able to independently mount the toilet tank, adjust the fittings and make the necessary ones in case of malfunctions.

Well-functioning plumbing, connected to the central sewerage system, is the key to a comfortable human habitation. Modern man It is very important that the bathroom is equipped in such a way that it is comfortable and “safe” to be there.

High-quality fittings - a guarantee uninterrupted operation toilet bowl

Sterility and sanitation in any toilet depends on the proper functioning of the drain tank. The drain valve for the toilet cistern is just the fundamental link in the operation of the tank. Functions of toilet fittings:

• self-filling of the tank with tap water;
• opening-closing the flow of liquid into the tank;
• draining water into the sewer;
• preventing the reservoir from overfilling with liquid;
• control of the water flow required for flushing.

Tanks are divided into four types.

1. Hanging tank. It's pretty old method tank container location. Used in the middle of the 20th century. However, it has a number of advantages, such as fairly quick access to the drain, ease of repair. The flushing efficiency, in comparison with others, is much higher. Minus - high level flushing noise.
2. A cistern that is attached to the toilet. This way of arranging the bowl is the most common. In this system, the cistern is sold with the toilet already attached to it. The advantage is small size and affordability.
3. Tank built into the wall. Expensive option. Requires complete dismantling of the wall. At the end of the installation of the bathroom, a release button is located on the wall, and the tank itself is invisible. Repair will be possible when the button is removed.
4. Pneumatic device. Instead of a button next to the toilet bowl is a pedal. Very convenient option for a home with children.

Drainage mechanism

Drain valves are of two types:

• exhaust - using a special handle at the top of the tank, raise the cylinder and open the opening to drain the water: this mechanism has actually gone out of use;
• a push-button system, which in turn is also divided into two types: one-button - everything is quite simple, after pressing the button all the water goes down into the toilet, two-button - when you press the first button, half of the contents of the tank go down, when you press the other - all the contents of the liquid.

Push-button drain valve- fairly common

A tank fitting with a stop function appeared, that is, after pressing the button, the water descends until it is pressed again.

There are designs equipped with a pneumatic actuator. Even a child can use such a system. Basically, all components of this equipment are made of durable materials. Toilet cistern fittings are a set of parts that ensure the functioning of the cistern.

A fairly large number of ways to drain water from tanks are presented. The principle of its operation is that water is drawn up to a certain mark, it is blocked. Through the action of a button or lever, the water descends into the toilet. Then everything happens again. At expensive models toilet bowls have modified trigger systems, the action of which is aimed at saving water.

Drain valve options

The fittings of the drain tank incorporates float pistons of various devices. Three types of valves are defined.

1. The float works by means of a lever closely connected to the piston. Initially, this lever covers the drain hole. Then it opens to refill the reservoir with liquid.
2. The membrane drain incorporates a silicone or rubberized diaphragm instead of a piston sealing ring. This diaphragm moves simultaneously with the working piston and opens and closes the drain niche.
3. Croydon system, which is used in obsolete cistern models. The piston activity is controlled by the working balancer.

Since the drain system is associated with overflow protection, it will still be preferable to choose a float system. The diaphragm tends to fail unpredictably. Accordingly, the emergency overflow protection system will not work. Repairing such a system would be difficult.

Options for supplying water to the tank

Water supply to the toilet bowl can occur in two ways, depending on the specific case.

1. Water supply to the tank from the side. Features easy installation. Therefore, this option is more popular. The tank is connected to the riser via a flexible hose. The disadvantage of this connection is not aesthetics.
2. The bottom supply will be a little more complicated in the device. Pros - low noise level when collecting water, aesthetics. The downside is the poor water permeability of the gasket.

Toilet device

The most common in operation are compact toilets, with a cistern attached to the toilet. They are not expensive and easy to use. Consist of the following parts:

• a tank for draining water with a bottom or side water supply, a button for draining water is located on the lid of the tank or a lever is located on the side;
• shut-off valves - performs the function of opening and closing the access of water to the tank;
• drain fitting for the toilet: after pressing the button, it opens the hole for draining the water, and closes it again after emptying, it also provides emergency draining if the shut-off valve breaks;
• the toilet bowl differs in the design of the sewer outlet: oblique and straight.

Toilet cistern fittings

The drain system is a reinforced component that is connected to the inlet and outlet installations tap water. The drainage device is combined with a device that protects against overfilling the tank. When exceeding acceptable level water, it does not pour out of the tank through the top, but merges into the toilet.

Rebar categories

Shut-off valves automatically open and close the valve for supplying liquid to the tank

The stop valves of the drain tanks open and close the valve for supplying liquid to the container when a certain mark is reached. When fully filled, the water inlet hole is completely blocked, and when the liquid level drops, it opens to a certain width by means of the float acting on the contact link, regulating the water jet. Consists of the following parts:

• water supply pipe;
• float;
• complex of levers;
• blocking valve.

The foam float plays the role of a regulator of the amount of fluid supplied to the drain tank. It is attached to a system of plastic or metal levers.

Release form of the locking system:

• localization in the upper part for supplying water from the side, minus - creates a lot of noise during the supply of water to the tank;
• for supplying water from above (very rare);
• for supplying water from below, the main plus is a significant reduction in noise level.

The drain valve is responsible for draining water through the drain hole of the tank into the toilet. It consists of the following parts:

• a hole for draining the contents of the tank into the toilet, located at a certain angle;
• overflow hose;
• valve pedal with rubber membrane;
• release button and release mechanism.

The operation is based on raising the valve pedal under the action of thrust, and automatically lowering back due to gravity.

In push-button drain fittings, the valve moves with the help of a balancer. During pressure on the button, pressure is also applied to one of the arms of the lever. The whole complex of drain fittings for different models has differences. There are push-button systems for complete descent of water, with two modes of descent and with partial descent of liquid.

The work of both types of valves is interconnected. If one component fails, the rest of the device will no longer function normally.

Drain fittings for toilet bowls

The quality and service life of the toilet bowl is directly affected by the operation of the drain system. Therefore, it is so important what the drain fittings of the flush tank are made of.

Most drain fittings are made of plastic. This a budget option. However, plastic is not very reliable material. The brass or bronze composition of the reinforcement is not subject to corrosion and is characterized by a relatively long period operation. It should be noted that plastic drain system can be repaired or replaced at any time.

The choice of fittings for the toilet cistern

Longevity also depends on the quality of the materials. If a good high quality plastic, then such a system will also last quite a long time. What fittings for the tank is better? When choosing it, you should pay attention to the following criteria:

When choosing fittings for the toilet, it is important to pay attention to many nuances.

• the very first thing is the level of quality of plastic: its susceptibility to change temperature conditions, strength;
• membrane quality: often, imported options are not designed for poor quality tap water, so they wear out quickly;
• special attention should be paid to the brand of the manufacturer - a manufacturing defect is possible;
• the fittings of the toilet cistern must match the size of the cistern;
• an important criterion in choosing drain fittings is the availability of replacement of its individual parts, their ease of operation;
• compliance of the design system for supplying water to the tank;
• plastic fittings deform over time.

When purchasing spare parts, it is necessary to check them for integrity and the absence of any damage.

Toilet cistern fittings correct selection- a guarantee of durable and high-quality work of the toilet bowl itself. Therefore, you should give preference to a model with parts that can later be found and replaced individually, rather than buying the whole system again. Don't skimp on the drain system. Quality parts cannot be sold for next to nothing.

Experts advise choosing German or Polish drain systems. To make the toilet work for a long time, you need to buy an expensive one, quality equipment, carry out timely regular diagnostics and adjustment of valve operation.

How to save on water

Tariffs for utilities are rising, so it would be advisable to try to save. To do this, you need to reduce the drained volume of water. At the same time and adjust the operation of the device.

To reduce water consumption, you need to adjust the position of the float, respectively raising or lowering its level. Will need to be moved drain tube. Drain tank fittings:

• fitting for water inflow;
• ball valve;
• membrane handle;
• connecting ring;
• siphon;
• a pedal that regulates the pressure of the jet;
• plastic membrane;
• pipe for draining water into the sewer;
• waterproof gasket;
• needle under the buoy;
• buoy filled with air;
• emergency drainage.

When the volume of water in the tank increases, the displacer rises, the spoke activates the ball valve, and it prevents the access of water. Pressing the lever opens the drain hole, and the water from the tank tank descends into the sewer. The water level in the tank drops and the buoy opens the water inlet valve again.

An emergency outlet prevents the tank from being overfilled. Most often, in modern systems drain it is built into the drain fitting.

Sometimes in life there are small troubles that give rise to big problems and violate the comfort of modern life.

One of these problems is the breakdown of the toilet drain, and its solution is absolutely simple - fix the cistern yourself.

This very simple task sometimes develops into insurmountable difficulties and tangible financial costs. Not always in the evening or on a weekend, a repair specialist comes quickly. And if he comes, he takes it at a double rate.

To prevent this from happening, you need to understand the design of drain barrels and learn how to repair them yourself.

Drain tank device

To practice self-repair toilet bowl, you need to know the cistern device, which is not a complex mechanism, and you can figure it out without having any special knowledge. What do you see when you open the lid drain barrel trying to determine the breakdown? The answer of a non-specialist will be obvious - a float and a mechanism for draining water. And, in general, he will be right. Indeed, these two elements are decisive. But to start the repair, you need to have a little more knowledge about the design. This is what we will try to explain to you.

Shut-off valves

If the plumber came to repair the toilet, then the most common word that occurs in a conversation will be shutoff valves. So what is it? In clear words, shutoff valves are absolutely all the internal parts of the drain tank.

Note!

The main purpose of this mechanism is to regulate the movement of water.

Valve

The water supply shut-off valve is a housing with a membrane and a float. The membrane, mounted in the body, is responsible for filling the toilet bowl with water. The float is connected to it by means of a lever system. The float includes a special screw for adjustment, which is responsible for the volume of water sent to the tank.

This adjustment screw has one useful feature- when it rotates in different directions, the height of the float is adjusted. It can be lowered or raised and thus the volume of water in the tank is regulated. Thus, if the toilet does not flush well or, on the contrary, when draining, there is an increased flow of water, then the level of the float must be adjusted.

Drain mechanism

In standard toilets, the flush mechanisms for the toilet cistern consist of three positions: body, flush button, valve. The principle of operation of the drain structure is quite simple. In the plastic case there is a movable valve controlled by a button. It is connected to the movable valve by means of a lever system. Among other things, drain valve equipped with an overflow mechanism that prevents the tank from filling with water above the maximum level, and excess water is sent to the toilet directly, past the valve.

Overflow is a plastic tube located in the center of the drain structure. It goes up or down and thereby regulates the filling volume of the tank. This is how the usual mechanism of the drain tank with the button works.

There are more complex devices, but there the system is much more complicated, and it will be very problematic for an unprepared person to figure it out.

Types of breakdowns of the drain tank

Breakdowns of drain tanks are quite standard and affect the three main components of the system - the tank body, drain design and float.

Float

Breakage of floats is of two types. In the first case, the supply of water ceases to the tank, and in the second, its supply does not completely overlap. To blame for this, there may be problems in two parts of the toilet - a float or a shut-off valve. If the problem is in the float itself, then the problem can be solved quite quickly.

By design, the float can be of several types: hollow inside or in the form of an inverted glass. The hollow float is more problematic. If water gets into it, it ceases to function and cannot be repaired. In this case, buy a new one. The second option is more preferable and is easily repaired. To do this, you just need to rinse it, as it is most likely contaminated.

Drain mechanism

Shutoff valve repair

If the problem is in the shut-off valve, then the drain tanks are repaired as follows. As you know, the shut-off valve is responsible for adjusting the volume of water in the tank. If the dosage of the water supply is violated, then either the membrane is to blame, or the holes through which the water passes are clogged.

Troubleshooting this problem is quite simple. It is necessary to unscrew the protective cap and remove the membrane, clean all the insides in the most thorough way. Then we put the membrane and the cap in its original place and check the operation of the toilet bowl. In general, if we talk about a float, then the membrane is its most vulnerable point. Therefore, in the event of a breakdown, it is better to replace it with a new one by putting an additional copy, usually supplied with the toilet bowl, or buy it at any specialized outlet. You can watch the video instruction for repairing toilet bowls in our article.

Tank device diagram

float adjustment

If we want the drain fittings for the toilet bowl to work for a long time and properly, then we need to know how the water in the tank is adjusted. This action is performed using a float. Its improper regulation leads to the fact that the water in the toilet rises to its edges, although according to the rules it should recede from the side openings of the tank by 3-4 cm, or in the absence of such, the water must slightly close the drain mechanism. Therefore, in order to reduce the amount of water in the tank, you need to lower the float using a screw or an adjusting rail. Otherwise, it must be raised.

Drain mechanism

We can say that the design of the toilet flush mechanism is mounted in such a way that if it breaks, there is only one problem - uncontrolled leakage of water from the tank into the toilet. This can happen in two cases. Or this happens as a result of improper regulation of the overflow, or from a valve malfunction. In the first case, you can fix the problem by raising the overflow tube or, if the leak persists, by raising and lowering the float.

Valve failure

In the second case, if the shut-off valve of the toilet cistern causes water to leak, then this is either due to the valve drying out, or due to debris getting under it. In this case, the drain mechanism is disassembled, after which we gain access to the hole from which the drain is carried out and to the valve itself. After cleaning them, put them in place and check the operation of the toilet.

Note!

If the problem persists, then the membrane in the valve must be replaced.

Other cistern problems

In addition to the problems considered and methods for their elimination, there are several more breakdowns that can be fixed by hand. If the connection fixing the tank with the toilet is broken, then you need to disconnect these two nodes from each other, remove the gaskets and replace them with new ones. At the same time, do not forget about the seals of the screws connecting the tank to the toilet.

Another problem you may run into is a broken mechanical assembly toilet. This problem is more serious, and its solution may be as follows. Either you replace the part of the mechanism that was noticed in the breakdown, or you have to come to terms with the fact that replacing the armature is the only correct way out.

Toilet cistern device video: