Hey, Has anybody ever used an item called the "Just-Right" by Nibco? It's a kind of a passive hot water return system that works of of the heat rises/cold drop idea. You basically go to your farthest hot water tap, put in a tee and run a return line back to the cold water inlet making a loop so that you always have hot water at the tap. Theoretically, it sounds like a good idea..... Any body know for sure?