I am having a new pool installed (roughly 35x9' rectangle, with a "shamo" shelf attached at one end/side, 12,000 gal). I have 6 returns specified (3 near bottom of pool to pipe heated water to bottom, 1 at each end to create a circulation, and 1 90 degree pointed at my "shamo shelf"; I'll have one skimmer). I live in CA, so I have to program my pump to not go over 36 gpm. All lines will be 2", the filter will be a 320 sq ft Pentair. There will be tree leaves in the pool at certain times of the year (a tree is near the pool).
The pool builder is recommending adding a (separate) return for a Polaris 360 sweep, as that model wouldn't require a booster pump. We need to decide to do this or use a robotic cleaner. Would a Polaris work? My current electrical rates are 31 cents/Kwh, so I want the option that uses the least amount of electrical power. Note that no plumbing has been done, so "anything" is possible at this point.