On this page, you'll find a helpful explanation on how a toilet works, with toilet plumbing diagrams and definitions of toilet parts. If you're trying to sort out why your toilet isn't operating ...

Locate the float: It might be a float ball on a rod or a cup sliding along the fill valve. Test the water level : Flush the toilet and watch when the flow of water stops. The water should be about ...

How to Repair a Running Toilet 1. Adjust the Float. The float arm controls the water level in your tank. If it’s set too high, water will keep running into the overflow tube.