Gravity Tank Toilet Valves
Toilets that use gravity tanks have two important
valves. The flush valve is a large stopper in the bottom
of the tank that is lifted by the flush handle when
someone flushes the toilet. The fill valve refills the tank
as soon as the tank starts to drain. It is operated
automatically by a float,
The flush valve in the bottom of the gravity tank
toilets will eventually start to leak. This allows water to
leak out of the tank into the bowl, where it siphons into