[graciegirl]

Originally Posted by Chatbrat

With very stable ground temps and our houses being built on slabs, with no basements the odds of having a toilet hot water mixing valves will be very slim; also, our houses are plumbed using a strict construction format---again go to youtube- and look for sound caused by bad fill valve

Here is the google;

sound made by bad fill valve. You tube - Bing video

[mulligan]

Originally Posted by marygalexa

If you know what it is; why worry about it. Way too many other things to worry about.

Because it's costing you water !!