I have added this signature....
18’ x 36” rectangular, Liner, ~26,000 gl., 1 skimmer Supply(?) w/ 2” pipe, 3 Returns (jets), Head- ?, Sand Filter 300 lb? Unknown brand, 13 yrs old, AUTOPILOT DIG-220, Pump- Pentair Challenger #346204 w/ AO Smith 1 hp (1.25 SF) motor, Polaris 280 /Century/AO Smith 3/4hp., Feature- separate dedicated Hayward Super Pump, 1.5hp.
Help me out here please-
Two speeds pumps- Are they not pretty inefficient and expensive relative to vs or single speed?
Considering a 600 lb. sand filter. Its this worth it?