Difference in Pump Diameter

ElGood

Member
May 11, 2011
24
Mesquite, Tx
My pump info is long gone from the nameplate, and I didn't do well on documentation when we first moved in, all I can remember is that it was a Sta-Rite 1HP. What is the difference between the older pumps (1992) with the thin, larger diameter impeller casing and the newer version of pool pumps with the impeller casing that is slightly larger than the motor itself?

Thanks in advance, Larry
 

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
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Jun 22, 2009
23,413
SouthWest Alabama
Those pumps were most likely Challenger Pumps. They were usually high flow pumps, but the newer pumps can have the same flow characteristics. Do you have any water feature that would require high flow or pressure?
 
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Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
23,413
SouthWest Alabama
Any inground variable or 2-speed pump in the 1 hp range, should handle your pool well when you need to replace the existing pump.