How to disassemble the toilet cistern: instruction on working with various structures

The toilet cistern is a cumulative tank, where water is collected, in order to flush feces out of the vessel’s bowl into the sewer system at the right moment. The tank itself has a simple design.

When people are interested in how to disassemble the toilet cistern, their interest often concerns disassembling the mechanism that is inside, or dismantling the cistern as a separate element of the whole structure.

Drain tank: dismantling and disassembling mechanism

The monitoring system of a set and water level is in each tank of a toilet bowl. Modern toilets are equipped with mechanisms of rather complex construction.

Apartment owners exploit (and disassemble, if necessary, repair) both outdated and technically advanced models. The disassembly process can be carried out directly on site - without removing the tank or after dismantling the latter.Which option will be applied depends on various factors.

Modern toilet bowl
The toilet cistern has a modern design. Such products are endowed with more advanced mechanisms set and drain water. Here, non-ferrous metals and plastic are used as materials for technical reinforcement elements. Used button control system

Usually, dismantling is carried out in order to completely replace the tank together with the mechanism for a more advanced model. It is also necessary to remove the drive in case of water leakage in the joints with the toilet. For example, due to wear of sealing gaskets, breakage of fastening bolts, the appearance of microcracks in the housing. Consider how to remove the toilet bowl in any of these situations.

Removal of water storage on the toilet

The classic design provides for the fastening of the toilet bowl on just two studs or bolts (d = 5-7 mm). Usually, metal (bronze, brass, steel) studs with double-side thread for nuts are used as fasteners.

Steel fasteners were used on outdated models. The service life of steel fasteners is relatively small. Sometimes these studs "burn" from rust after a year of operation of the device.

Toilet tank fastening system
Usually fixed drain tanks on the toilet bowl in the area of ​​the back.To install the tank is designed specially serving shelf. On the surface of the shelf there are two holes that exactly coincide along the axes with the holes in the bottom of the tank. Most designs support fasteners at two points.

Fastening to the base of the toilet bowl is usually done through two holes (or 3) made in the bottom of the tank. The same two holes, in the same axes, are on the rear attachment shelf of the device.

Through the combined holes, fastening pins are passed, gaskets are put on them from both sides and the coupler is fastened with nuts. The cavities of the cistern and the toilet bowl are united by a common pipe insulated at the joining point with a rubber sealing ring.

Tank fastening with three screws
The option of mounting the drive according to the scheme on three points. Such a solution is considered more reliable as it provides better stability of the tank. In addition, mounting the tank at three points contributes to a better fit of the gasket. The risk of leaks in this place is reduced, which means that the tank will have to be disassembled less often.

The task of how to remove the tank from the side of the toilet bowl, is solved as follows:

  1. Shut off the centralized water supply valve.
  2. Disconnect the water supply hose.
  3. Release the drive by pressing the drain button.
  4. Unscrew the head of the drain button and remove the top cover of the tank.
  5. Collect the remainder of the moisture inside the tank with the help of a sponge.
  6. Unscrew the nuts on the mounting bolts (bolts) under the added shelf.

It now remains to carefully lift the tank, separating it from the installation site (perhaps with some effort, because sometimes the gasket sticks to it) and then move it to the place where it is planned to perform further work.

Disassembled toilet bowl
Bottom view of the toilet cistern after dismantling from the side shelf. In the center is visible rubber sealing gasket covering the plastic nut of the drain mechanism. On the sides there are two drive studs. Just below on the right you can see the threaded part for the hose of the water kit module and the plastic fastening nut.

Next, find out how to quickly disassemble the drain mechanism.

Disassembly of the drain mechanism

On modern models of the average price segment, as a rule, the push-button mechanism of double drainage of water (3/6 liters) is used. One pressing of any of the buttons switches on the mode of operation of the drain and filling modules.You can stumble upon a variety of options for the execution of such mechanisms. However, the assembly configuration for them is of the same type:

  • head with buttons and threaded part under the valve mechanism;
  • valve mechanism with lower threaded part;
  • sealing gasket;
  • nut mounting valve mechanism.

When the top cover is removed, the head with the buttons will already be twisted. It remains to remove the gasket from the mounting nut. The gasket (rubber ring) has an internal region in the shape of a pentagon or round.

The same shape has a fastening nut on the external border (not always). When assembled, the sealing rubber ring is put on the nut. It is removed and the nut is turned off. The released mechanism is easily removed. The same method is fixed filling system.

Toilet bowl flush mechanism
The scheme of the majority of drainage mechanisms of foreign and domestic production. The design of one-button control, which can be found on almost all toilets budget performance.

Material manufacturing valves - plastic. If repair is necessary, the mechanism is disassembled, but it is easier to buy a new one for replacement.

On how to properly disassemble the tank for the care of valves, detail "tell" movie:

Removing the tank cover

Again, going back to the models of toilet bowls of the modern design, it should be noted that there is often a problem for users - how are the covers removed on such models?

Indeed, these designs are somewhat different from outdated toilets in the sense that they are made more technically, including fixing the lid. But in general, the principle remains old - the cover is pressed against the nut, which is included in the valve mechanism kit.

Removing the flush button
Technology showing how to disassemble a modern toilet cistern, starting with dismantling the lid. The main task is to gently unscrew and separate the button head. After this operation, the cover is removed and the repair (replacement) of the drain mechanism is performed.

On the new models, the heads with buttons, bottom-button and two-button buttons act as a clamping nut. To remove one-button fasteners and remove the cover, the following steps are performed:

  1. The button is pressed as when draining water and hold in this position.
  2. Gently turn the head with a button counterclockwise.
  3. Finally turn the head with a button from the sleeve valve mechanism.

Threaded connection may differ on different models. There is a wide-bore outer sleeve thread, as in the picture below and there is also an internal sleeve thread for a small diameter rod.

Loosened toilet cistern button
It looks like the dismantled head of a single control button. This is just one of the possible configurations. In practice, there are different designs of push-button heads. This moment must be considered when starting the disassembly of the toilet bowl

Along with single control buttons, the head of which is simply unscrewed, there are more complicated structures for disassembly made with latches. Often such a solution have two-button mechanisms.

The video guide clearly demonstrates the procedure for removing the tank cover:

Disassembling tank with two buttons

On the toilet cisterns, where a two-button drain mechanism is implemented, there are various methods of fastening. With this configuration, it is sometimes impossible to simply turn out the head with the buttons. In such situations, disassembly technology is as follows:

  1. It is necessary to press into the body of the head only one of the buttons (small).
  2. On the opened inner wall in the lower part a small groove will open.
  3. Carefully squeeze the retainer through the slot with a screwdriver.
  4. Remove one button (large) from the body and then another in the same way.
  5. Unscrew the locking screw that is located under the buttons.

After these operations, the lid of the tank with two buttons is removed without any difficulty.

Double button cistern toilet
The process of dismantling the head with two control buttons begins with pressing a small button. This opens access to the mounting aperture on the side of the head housing. Through this opening, the lock is removed by lightly pressing a screwdriver, after which the buttons can be removed and get to the fastening screw

There are also tank designs, where you first need to unscrew the nickel-plated decorative washer, then unfold the cover 90 degrees - that is, install it across the tank. In this position, press the locking brackets located inside the bowl of the button head. After these manipulations, the cover is completely released from fasteners.

Removing the old toilet cistern

Still continue to exploit a number of outdated models of toilet bowls.It is more often necessary to engage in the repair of experienced types of products due to significant wear of their components. But the owners of such structures do not have to think a lot about how to fix or remove the toilet cistern tank, due to the most simplified design.

Outdated toilet cistern model
View of the mechanism inside the cistern of an outdated toilet bowl model. Float dial control system and traction drain control. The tank is also mounted on the bottom with two bolts. The top cover is removed easier and faster than on new models.

So, to dismantle the same cover, it is enough to twist the handle on the drain of the drain mechanism and unscrew the plastic (or metal) washer nut. Under the lid inside the tank is installed float mechanism set of water and lever-valve mechanism drain. The valve system of such a mechanism is usually attached to the tank through two additional holes in the bottom.

The old design tank itself is removed in the same way as it is applied to new models. It is necessary to unscrew the two bolted connections in the bottom of the tank. The passage zone for water from the accumulator to the bowl on old toilet bowls is insulated with an elliptical-shaped sealing ring.Often in old systems there are overflow pipes, fixed to the bottom of the tank with a plastic nut.

Removing an outdated tank model
Some models of cisterns are equipped with fastening screws with screwdriver heads. But to disconnect such fasteners is recommended traditionally by turning away the nuts from the bottom. So gaskets are not deformed. Screwdriver is used only to lock the screw from turning

To dismantle the lever-valve mechanism drain, you need to unleash two more bolted connections that secure the rocker of the drain mechanism. Dismantling the water kit module is done by loosening just one nut on the outside of the tank body.

You must disconnect the water supply hose from the storage valve beforehand. It should be noted: there are models of tanks with levers of drainage, embedded in the side wall. On such devices, the toilet lid is not fixed at all - just lies, leaning on the walls of the case.

Faults - the reason to disassemble the tank

The characteristic malfunctions forcing to resort to disassembly are often:

  • leakage at the time of discharge in the area of ​​the gasket at the junction of the tank with the bowl of the toilet bowl;
  • leakage in places fastener drive to the shelf of the toilet;
  • violation of the functions of the drain mechanism;
  • violation of the functions of the mechanism of water.

Often, problems with leaks are eliminated by simply tightening the mounting nuts. The functionality of the drain and set mechanisms may be impaired due to insufficient water pressure in the centralized system. Therefore, before you begin to disassemble, you should make sure that there are no other opportunities to eliminate defects.

Defects of functional valves

If there is an involuntary flow of water from the storage tank into the toilet bowl vessel, the closure ring is most likely defective. It needs to be replaced. The same effect can be observed when the mechanism for closing does not work. Possible cause is jamming of the control button.

Insufficient filling of the tank with water indicates some defects in the module set. Often the cause is the displacement of the float on the limit strap or its contact with other parts of the mechanism (tank wall). The complete absence of a drain is possible due to a non-working module of the kit or a drain mechanism.

A few practical tips will help you cope with self-adjusting valves.

Plumbing Care Rules

When dealing with the disassembly of plumbing fixtures, each user should be aware of the principles of care for ceramics. For the repair work it has the most direct relation.

Ceramic products are resistant to chemicals, but are easily damaged by cleaning with metal gauze, abrasives and other similar substances. Cleaning of household plumbing after repair should be performed with soft substances and materials.

Conclusions and useful video on the topic

All problems associated with the tank, and how to eliminate them are shown in the following video:

Instructing before the execution of work related to the repair of household appliances with their own hands - is voluntary. However, superfluous information never hurts in any endeavors. The more information there is about a particular object, the easier and easier it is to perform all the actions. Dismantling modern toilet bowls, despite the simplicity of the actions, also does not exclude recourse to instructions.

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