Water Heater Bypass Valve
Thank you for the input.
I am aware of the check valve but have not yet found it. I also have found the plumbing diagrams for my coach and have carefully reviewed the installation. I believe everything is connected correctly and that the new bypass valve I installed is working properly. When the system is in normal mode a significant flow of water is provided to the hot water heater. I know that because I tested the system with the water heater drain open. However, when the valve is moved to bypass position, water still flows to the water heater but at a reduced flow. Again, I know the bypass valve works because I checked it separately. I am thinking that I may have a bad check valve. Is that a common / possible failure item? When my original bypass valve failed this summer, it blew apart while I was driving. Could my original bypass valve and my check valve have both failed during the same incident? I don't have experience to draw upon but a bad check valve seems to be the only thing I have not yet checked.
Is the check valve installed on or behind the water heater? Is it easy to replace? Also, do I need to be concerned if get antifreeze in my water heater when I freeze protect. Buying 10 more gallons of antifreeze my be my best short term solution.
I am still in need of some expertise. Thanks again.