Thursday, 22 July 2021

Replacing spa pumps - sizing?

I have a 20 year old 3000 sf gunite spa with its own plumbing next to my pool. The spa a 1.5 hp Hayward Super Pump powering the filter / pool heat / SWG. Filter is a Hayward C500 cartridge. Piping is 2" except for the in/out of the filter which is 1.5". The flow from the pump to spa is VERY strong and overkill, and I realize I should have bought a two speed pump last year and not a straight replacement when the pump died last year.

The spa also has 8 gunite jets fed by 2-2.0 HP Hayward...

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