I am building a peanut shaped pool 20x40 (3-8ft.) with a water fall in the middle and 4 deck jets. Two in each corner. Iam thing 2 skimmers and 4 returns? Also I would need an auto water leveler and suction for cleaning system. Looking for a drawing on how to plumb. There is no heater or spa. I will be installing a salt system, waterfalls and 4 water jets.