- Shut off the water and drain the tank.
- Unscrew the two thumb-screws that hold the levers and push out the levers.
- Lift out the plunger, unscrew the cup on the bottom, and insert a new washer. The washer is made of material such as rubber or leather.
- Examine the washer seat. If nicked or rough, it may need refacing.
If the float-valve assembly is badly corroded, replace it.
Figure 7.—Water closet (toilet) flush tank.
Float Ball
The float ball may develop a leak and fail to rise to the proper position. (Correct water level is about 1 inch below the top of the overflow tube or enough to give a good flush.) If the ball fails to rise, the intake valve will remain open and water will continue to flow. Brass float balls can sometimes be drained and the leak soldered. Other types must be replaced. When working on the float ball, be careful to keep the rod aliened so that the ball will float freely and close the valve properly.
An obstruction in the water closet trap or leakage around the bottom of the water-closet bowl may require removal of the bowl. Follow this procedure: