A moaning toilet is likely caused by a faulty fill valve, commonly known as a ballcock or float valve. Use this guide to replace it with a new one.

Toilets Lift the top of your toilet tank and look inside. Make sure the fill valve is at least an inch above the water. The bowl refill tube should also be above the water line. Boilers Install a ...

Is your toilet taking forever to refill? It might be time to replace the fill valve. This DIY guide walks you through the entire process with no plumbing experience needed.