mhr
New Member
In another post I asked questions about a recently installed recirculation system. I have just a couple more questions about my system (THANKS AGAIN)!
Below is a picture of what I think my system should look like. Does the PRV also act as a backflow or do I need one of those as well? Is an air vent necessary and where? I don't have the expansion tank currently but from what I have read so far it seems like a good idea.
Below is a picture of what I think my system should look like. Does the PRV also act as a backflow or do I need one of those as well? Is an air vent necessary and where? I don't have the expansion tank currently but from what I have read so far it seems like a good idea.