Plumbing – Water still circulating through toilet even after I shut off the water supply!

leakplumbingtoiletwater

Full youtube video is here.

Basically when I turn all the water off to my toilet, water is still leaking out of a yellow tub from inside the tank, and circulating through the toilet.

I need to fix this so that water is not leaking and so when I turn the water off, no more water gets circulated through the toilet. Any ideas as to what is going wrong and how I can fix this?

Best Answer

My guess is that the shutoff valve (the first thing you showed in the video, near the floor) is not 100% shutting off the water. Hard water can cause this as deposits inside the valve can prevent the gate from fully shutting.

You could either replace the valve stem (can be done without shutting off hour house supply) or replace the shutoff valve entirely. I generally prefer replacing the entire shutoff valve with ball valves rather than gate valves, because I find they last longer and are easier to operate.

Here's an example of the kind I like to use: Ball shutoff valve example