I just wanted to introduce myself. aside from my screen name (doityourself) my name is Mike I live in Lathrop, Ca. I have a 3.5ft to 6ft double kidney shape pool with attached spa ~25,000 gallons. Hayward PRO DE/Sta-Rite 2 hp two speed pump with a P4 and Goldline 40k salt system. I also us a G3 to clean pool floor.