I have an above ground 27', 17,500 gallon. Ther is only about 6-8 feet of head of 1.5" hose from the skimmer to the pump' then to the Hayward 150 Voyager cartridge filer, then heater, then return. The current pump is Hayward SP1520Z1EFTC, 2.0 HP, SF is SPL. I have heard this is an uprated...