If the float or the fill valve settings are not high enough or have dropped over time, the toilet will stop filling before the tank has enough water. To fix it, grab a screwdriver, take the lid ...

1. The flapper. The flapper, which creates a seal in the bottom of your toilet tank and then lets water flow into the bowl when you flush, is one common cause of running toilets.

Install the flow restrictor. For some models of fill valve (including this one), there are a handful of flow restrictors that come with it in several colors: black, brown, clear, gray, blue, etc.

Commercial or industrial float valves are too big to use in his small tanks, which led [Billy] to test dozens of DIY designs. He used everything from plastic water bottles to pipe ends, but ...

If the fill valve, float, or flapper (the seal that moves when you operate the handle, letting water out and into the bowl) are malfunctioning, water will leave the tank, drop the water level, and ...