The drain tank does not hold water: what to do to solve the problem

The design of the toilet bowl - the device is not very complicated. For its repair, you can, of course, turn to specialists. But it's better and cheaper if you have the skills to work with a tool, do repairs yourself. It will not be very difficult.

The design and operation principles of the waste tank

The drain mechanism of the toilet bowl is divided according to the type of water draining. There are models in which, when the lever is lifted or the button is pressed, all water descends into the bowl of the toilet bowl, flushing into the sewage canal. In more modern models thought out economical. That is, two buttons - when you press one, the tank is emptied completely, while pressing the other - the part of the water comes down.

Despite this, the interior of the drain tank of any type is almost identical.

The siphon for the drain tank consists of several levers, a pear, a float, valves, a button and gaskets. The drain in the toilet works according to the principle of hydraulic shutter.

Water, filling the tank, pushes the float, and it gives a "signal" to the shut-off valve to block the flow of water. When the user presses the button, the drain cock opens and the water descends. This is how the drainage occurs.

The drain tank does not hold water. What to do? Focus on four main elements of the drain system: valve, overflow, drain lever and tap.

Float valve (or valve) - a piece connected by a connection with a supply hose. It is attached to the locking unit, which is controlled by a float. If the tank is empty, the float pulls the locking piece of the float valve downwards and the union opens. The float floats up when the tank is full and closes the choke.

Trigger valve - a special hatch, fixed on the hinge. It closes the drain hole. When the hatch is closed, the float cock opens and the tank begins to fill. When it is open, the water merges into the toilet bowl.

Overflow - hollow column, directly connected to the toilet hole. The main function of this element is to protect the overflow tank from overflow.

The drainage lever is the system that controls the water drain valve. Its main element is a holder with a rocker, which is connected to the valve (hatch) at one end. The user presses a button that presses against the loose end of the rocker, opening the hatch. When the button is released, the rocker arm and the hatch return to their original position.

The drain tank with the bottom water supply has a slightly different structure, but the elements requiring replacement or repair are the same as on the drain tank with side water supply.

Preparatory work

For repair work in the drain tank may need a pair of pliers, working gloves (preferably rubber), nippers and spare parts.

Before repair work, you need to close the tap at the entrance to the tank.

On most modern toilet bowls, a flush button is mounted in the lid. Naturally, before removing the cover, you need to detach the button and the decorative ring. After detaching the button mechanism, the ring is removed (easily poddervaetsya any sharp object). If the tank is fixed with fasteners, they are dismantled.

In the case of a two-button flush system, the buttons are pressed alternately and scrolled until disconnected.

It should be noted that the lid of the tank is not considered a spare part and is not sold separately. Therefore, you should treat it with extreme caution.

The drain tank flows: possible causes

Quite often it happens that the water in the tank does not hold and constantly flows into the toilet. This happens most often due to poor quality siphon or other fittings, depressurization of plastic parts of the siphon or loss of elasticity of the pear. The main reasons can be several. Here are some of them:

• Petal or pear adjoins leaking;
• The work of the tank ball-tap is not adjusted;
• The ball-valve and hose connection is not sealed;
• The connection between the toilet seat and the tank is not sealed.

So, the drain tank does not hold water, what should I do? Let's try to understand.

You need to start with a visual inspection of the valve and siphon for chipped, cracked and other noticeable damages.

Damaged membrane

Most often leaks water in the toilet because of a malfunction of the membrane. It can not be repaired. Therefore, it must be replaced.

To this end, removing the lid of the tank, you need to place the crossbar on its walls and fix the lever of the float on it. Then, the lock nuts that connect the tank to the flushing pipe are dismantled. Then it becomes possible to disconnect the siphon from the float lever and replace the membrane.

Pear lost elasticity

If the drain tank does not hold water, what should I do? Be sure to check the elasticity of the pear. The manufacturer warns that its work is short-lived, since rubber can not remain elastic for long. After a while it becomes rigid and does not keep tight the connection with the saddle, as a result of which water begins to seep. The solution to the problem is to replace it with a new one.

If the deformation of the pear is insignificant, you can use the advice of specialists. Temporarily (before the replacement), it is heavier, planting on its axis, holding it, several stainless nuts.

The saddle should hold the pear tightly. But in the process of operation it can form plaque or corrosion, and the pear does not fit tightly. As a result, water finds a way out.

You can fix it as follows. Remove the pear and clean the saddle thoroughly. You can use fine sandpaper. When assembling, special attention should be paid to the fasteners and nuts.

The reason for the uselessness of the bolts restraining the saddle

If the drain tank does not hold water for this reason, the repair is carried out according to the following scheme. First, the water is completely removed. Then, between the flexible hose and the float valve, the union nut is unscrewed, then the bolts securing the toilet bowl to the tank are removed. Further, slightly bending the tank, release the corrugation that connects it to the toilet.

Now the bolts are dismantled: both are necessary, even if one has come to be worthless. In their place are mounted new (brass or stainless). Tighten carefully, with no special effort and avoiding shifts and distortions. Now you can build a structure and use it.

The shut-off valve is broken

It is not difficult to detect this breakdown. The valve should be pressed by hand. Ideally, water should stop leaking. If it continues to leak, the valve is defective. The solution is to replace the valve.

Independently it can be done as follows.

Empty the tank. Carefully remove the cover by first removing the button. Next, displace the float arm together with the float (if they are not an integral structure). Now you can turn off the hose adapter and disconnect the water pipe and the external fitting.

Further loosens the nut inside the tank, pressing the valve (valve). Then the outer nut is twisted, which fixes the body of the valve inside the tank. Now it is easy to dismantle the broken part and put a replacement (preliminary on its fitting the inner nut must be screwed). Screw the outer nut, pressing the hidden one. Then connect the water hose and drain the water.

What else to look for if the drain tank does not hold water? Perhaps the reason is the deviation of the height adjustment knob of the trigger button. The shift of the valve relative to the opening of the descent leads to a stable leakage of water. To solve this problem, adjust the height of the valve in accordance with the instructions attached to the siphon.

If the problem persists, you will have to completely replace this part of the drainage mechanism.

The tank continuously picks up water

The malfunction is that the float lever has shifted or skewed. The fix is quite simple: lower it below the incoming water pipe (not less than 2.5 cm). And thoroughly fix all the fasteners.

If the float in the drain tank on the plastic lever, then adjust it by tightening or loosening the screw. Or, in some models, the adjustment takes place using a plastic ratchet.

If its adjustment does not solve the problem, you need to inspect the pin, which holds the lever of the float. Perhaps it broke. In this case, it can be replaced by a piece of wire (preferably copper, steel will rust) of the same thickness.

The hole in the plastic valve, which includes the stud, is also prone to wear. In the process of work, for example, it can become oval. This repair failure does not lend itself. Plumbers are advised to remove the valve to show in the store and buy an identical one.

Perhaps, because of the float, the drain tank does not hold water. How to repair him? If it is heavier because of the accumulated water, it must be drained, dried and treated with sealant, cracks or crevices appear. After repair, the part is put in place. This is a temporary solution to the problem. Ideally, you need to replace the float.

Trouble in the trigger

The most frequent malfunction in the trigger is the unregulated overflow. In the case where his tube is not high, and the float allows you to get water above this level, you can fix the problem by simply setting the level of filling the tank.

So, the drain tank does not hold water. What to do? The scheme is simple. It is necessary to lift the overflow pipe (it easily extends upwards). Then there are two possible scenarios.

First. If the water stops flowing, and leaves through the overflow pipe, then raise the tube, and the problem is solved. And the second. If the overflow tube is at the maximum level (which threatens to overflow water), then lower the float slightly.