I came across a system that recirculates hot water in your fresh
water plumbing. It helps to save water wasted when opening a
faucet and waiting for hot water. Easy installtion and priced
around $200. Lowes has it and Amzon has it a little
cheaper.
I also found a 12 v pump that can be substituted in for boats and RVs.
I put one in my house and it seems to work well. Next step is to
put one in my camper where conserving water is even more
importent.
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