Generally speaking, there are many reasons for the leakage of the toilet, except that the drain valve is not tightly sealed in the water tank fittings, and the quality of the toilet itself is not good.
1 Inferior material: Some manufacturers blindly reduce the production cost. The inferior material is used to cause the water inlet of the inlet valve and the inlet pipe to crack when injection molding, resulting in failure of the seal. The water in the water tank flows into the toilet through the overflow valve overflow pipe, resulting in “long flowing water”. ".
2 Water tank fittings miniaturization: excessive pursuit of miniaturization of water tank fittings, resulting in insufficient buoyancy of the floating ball (or floating bucket). When the water floods the floating ball (or floating bucket), the inlet valve cannot be closed, so that the water keeps flowing. The water inlet tank finally flows into the toilet from the overflow pipe to cause water leakage. This is especially true when tap water pressure is high.
3 Water tank accessories interference: Each mechanism of the water tank fittings interferes during the operation, resulting in water leakage. For example, when the water tank is discharged, the float ball and the float rod fall, which affects the normal reset of the flap, resulting in water leakage. In addition, the float rod is too long, and the float ball is too large, causing friction with the tank wall, affecting the free rise and fall of the float ball, resulting in seal failure and water leakage.
4 The sealing of each connection of the drain valve is not strict: the non-disposable forming drain valve is not tightly sealed due to the joint. Under the action of water pressure, water flows into the toilet from the interface gap through the overflow pipe, causing water leakage. The lifting inlet valve can be freely changed in height. If the sealing ring is not tightly matched with the pipe wall, water leakage often occurs.
5 sealing ring is not tight: if it is leaking from the bottom of the toilet after flushing in the toilet, and the water is unclear and smelly, then it can be judged that the sealing ring on the drain pipe at the bottom of the toilet is not sealed. The sealant on the edge of the toilet and the ground is not tightly sealed, and the dirt is reversed in the case where the drain pipe is not smooth. You can first confirm whether the drainage pipe is not smooth. If the pipe is not smooth, you should first clear the pipe and then let the product seller reinstall the toilet. Most of this happens shortly after the toilet is installed.
6 There is a crack in the toilet: If it is found that there is water seepage from the surface of the toilet at any time, then it is suspected that there may be cracks in the toilet. The test method is: first turn off the inlet valve, then drain the water in the toilet tank. Clean, then add the red ink or colored ink to the water left in the tank and stay for about 30 minutes. Observe whether or not there is oozing colored ink. If there is any, it can be concluded that there is a crack in the toilet. This situation cannot be repaired. Repair is also a problem. The only way is to replace it.
1 Check if the flush switch is reset. Some plastic toilet flushing switches have been worn for a long time and occasionally get stuck and can't be regained. It is usually reset by repeating the switch several times. Check if the rubber gasket under the ball valve is aging, the seal is not strict, and the problem needs to be replaced.
2 Check whether the connection between the spherical float and the water inlet switch of the water tank is loose, the float is in place and the switch is not closed, so that the water does not stop, and the water flows out from the upright drain pipe when the water is full, as long as the connection between the float and the water valve switch is tightened. can. If the rubber ball valve is damaged, the seal is not strict, and water leakage occurs, and it needs to be replaced immediately.
3 water tank leakage, basically the problem of the drain valve, check the water plug of the water tank outlet, if the rubber plug of the water outlet is damaged or blocked by foreign matter, the plug is not tightly sealed, and the toilet water will not stop. If the water supply pipe in the water tank is placed incorrectly, it will affect it more or less.
Tips: If the interface between the toilet suction port and the down pipe leaks and leaks, it is best not to repair it yourself. It is recommended to have a professional plumber to repair it.