Neither I nor my plumber have experience with multi-branch recirculation systems. We have a 4-branch return system to redo and I'd like to learn a bit. Does anyone have a link to a good design article on multi-branch systems?
Couple of questions to get me started:
1. What are the typical choices for a balancing device to get equal flow in the branches? Fixed or adjustable?
2. Do I need check valves in each branch or is one at the pump enough? Is there ever a possibility of flow between branches if they don't each have their own check valve?
Couple of questions to get me started:
1. What are the typical choices for a balancing device to get equal flow in the branches? Fixed or adjustable?
2. Do I need check valves in each branch or is one at the pump enough? Is there ever a possibility of flow between branches if they don't each have their own check valve?