Hi all, I'm a new AG pool owner and new TFP member. The pool, PolyGroup 24x52 purchased at Sam's. Instead of using the pump and filter that came with the pool, I ordered a Slapool 4500 gph pump and sand filter (175 lbs.) and added a wall skimmer. My question is how do you relieve the air pressure from the system? Any help would be greatly appreciated.