Last year I started a DIY vinyl 20x40 kidney-shaped pool project and got as far as setting the wall panels. For a variety of personal reasons I stopped work on it and left it sit for a year. I've finally gotten back to it now, and after re-doing a lot of the excavation due to winter wall cave-ins and spring erosion I'm finally back where I left off and ready for concrete and after that, plumbing.
My pool will be 25,500 gallons with a Triac spillover spa. I have a Goldline Autologic PS-8 controller with chlorine cell, and a Northstar 2hp max-rated 2-speed pump and 500-lb sand filter. I'm now on my tenth or so revision of plumbing design. I started with the Goldline drawing and deleted the things I don't have and reworked a few details. Some of the choices I made may seem a little odd, so I should explain my reasoning. First, the PS-8 controller has a lot more switching relays than valve outputs. This causes me to in some cases lean toward adding pumps to automate features that I otherwise might have chosen to use valves for. I wanted remote control for the deck jets. By putting them on a separate pump connected to an unused relay I avoided using another valve output, plus I gained the ability to run them while using the spa. Another pump is used for the spa jets, which I think I could have run from the filter pump (on high speed), but it would have cost another valve output since I didn;t want the jets on all the time the spa was selected, for instance while heating prior to use. The reason for putting the vacuum port on an automatic valve was to add the ability to schedule running a Navigator pool cleaner during times the pool is not in use. For the solar heater I may not need a booster pump and will try runninng without one first. Alternatively maybe I could have skipped the solar valve and used just the booster pump control to turn solar heating on and off. I'm willing to re-visit all these choices if there is a better way to go.
What I'd like now is to get opinions on the design before I install it, while there is time for easy corrrection or improvement. I'd appreciate any comments you might have.