One thing I would strongly suggest if the work is not done yet, talk to your pool builder about laying out your pad with future maintenance in mind, all pipes should have union fittings, space should be left for splices, if ball valves are used they should be threaded with slip to thread PVC adapters, etc. Many pool builders seem to plumb pads as compactly as possible leaving no space to repair anything, instead the first time you have to change out a pump or filter, or even just add a heater, you have to rip out all the plumbing, and perhaps even jack hammer up the concrete if they plumbed fittings too close to the ground.
I would also suggest dedicated lines to all fittings, drains and skimmers, it does not cost that much more now, but can save you a fortune later.
Ike