[FrankR]

I've been trying to design an idea to NOT waste any water till the hot water comes out of the kitchen faucet. In my other life as a contractor, there would be a seperate copper line plumbed from the water heater to the most distant use from the water heater. All day and nite the hot water would continue to circulate in the hot water system as cavitation. The last hot faucet was the same temp as the water heater. On several RVs, I have used a seperate pump to move water at the most distant faucet to the potable white water holding tank. In an Airstream there is not an easy way to route the piping. Any ideas?? Waiting for hot water for any task is a waste of water. Frank