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I think those mostly work when the shower is running though. When it's stopped the water in the cold pipe is eventually going to get cold. Still a good idea - I
by ajb 4y ago
I think those mostly work when the shower is running though. When it's stopped the water in the cold pipe is eventually going to get cold. Still a good idea - I've been planning to get one when I next redo my bathroom.
- bryanlarsen 4y agoThese work when the hot water is cold, about twice a day for me, less if the shower is used regularly. The valve opens and water flows from your hot water pipe into your cold water pipe. So you should turn it off when you go on vacation.