So I had my heater installed yesterday and got him and I am concerned whether it was plumbed in correctly or if my pool builder ran out of connections and made do with what he had rather than going back to the supply store.
I can't for the life of me figure out why this was plumbed this way because it doesn't make sense. If anyone can help me understand whether it was done correctly or whether I have cause to be concerned that would be awesome. I just don't understand why the return from the heater is plumbed so that water is forced up to a closed valve past the T connection that returns water to the pool.
Hopefully the picture helps someone to answer my question.