Reasons Why Your Toilet Tank Fill Valve Keeps Running Continuously

When the toilet tank is in use and there is continuous water flow, it's important to identify the cause. Below, I'll introduce the reasons why the water valve in the toilet tank continues to fill with water.

Reasons for Continuous Water Filling in Toilet Tank Water Valve：

1、It may be caused by the float of the water valve not rising, so you just need to push it up without it touching the tank wall.

2、It could be due to sand particles entering the valve diaphragm, causing a poor seal. Cleaning the diaphragm will resolve this issue.

3、Another possibility is that the filter screen inside the water valve is clogged. Simply removing and cleaning this filter screen will fix the problem.

Reasons for No Water in Toilet Tank：

1、The float inside the water tank may be obstructed by the tank wall or other components, preventing water from entering. You need to adjust the position of the float for proper water flow.

2、If the tank has been in use for a long time, the internal filter may have accumulated a lot of dust, which can lead to clogging. You should remove this filter and clean the surface dirt before reinstalling it.

3、If the float position is too low, it may cause the water supply to stop. The float should be raised to meet the requirements for water inflow.

4、There can be a buildup of debris between the float and the water tank, which may cause it to get stuck, resulting in an inability to move up and down. Clean the dirt and adjust the float position.

5、If the inlet point inside the tank is blocked by debris, water cannot flow in. You need to remove the check valve, clean any surface debris, and then reinstall it.

In summary：This concludes the discussion on the reasons why the water valve in the toilet tank continues to fill with water. Generally, these are the main causes, and you can address them using the methods outlined above.