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 Super Pumps, which are now leaking. I planned to replace the gaskets and shaft seal on the pumps and thought this would work, but as I removed the first pump, its seems to be pretty corroded and I have yet to get the back plate off (assume I'll figure that out tomorrow). But these pump motors will need replacement soon, if not now. Assume I am able to recover the wet parts of the pumps and only need a new motor.
Question - does it make more sense for me to simply replace the two 2 HP motors, or to try to downgrade the motors to 1.5 HP (and move the one year old 1.5 HP filter pump to the jets, replacing the filter with a two speed pump)? Can the existing non-motor parts of the 2 HP pumps (C48M2N111) take a 1.5 HP pump? And can the 1.5 HP power 4 spa jets (1.5 inch Hayward concrete inlets with Waterway gunite polyjets) or will I see a decline? I think the original builder overloaded the capacities of the pumps, but I really dont know how to check.
Thanks advance for your thoughts.
The spa also has 8 gunite jets fed by 2-2.0 HP Hayward Super Pumps, which are now leaking. I planned to replace the gaskets and shaft seal on the pumps and thought this would work, but as I removed the first pump, its seems to be pretty corroded and I have yet to get the back plate off (assume I'll figure that out tomorrow). But these pump motors will need replacement soon, if not now. Assume I am able to recover the wet parts of the pumps and only need a new motor.
Question - does it make more sense for me to simply replace the two 2 HP motors, or to try to downgrade the motors to 1.5 HP (and move the one year old 1.5 HP filter pump to the jets, replacing the filter with a two speed pump)? Can the existing non-motor parts of the 2 HP pumps (C48M2N111) take a 1.5 HP pump? And can the 1.5 HP power 4 spa jets (1.5 inch Hayward concrete inlets with Waterway gunite polyjets) or will I see a decline? I think the original builder overloaded the capacities of the pumps, but I really dont know how to check.
Thanks advance for your thoughts.
