Massive algae issues

[Luke978]

Oops, its a SP1540CFP.

[PoolDoc]

Yeah, it should be OK. I can't find the electrical characteristics on that pump.

You probably need to put a valve between the pump, to throttle flow back some, to keep the motor from overloading. The filter will have so little 'back-pressure' with that pump, that you may create an 'over-flow' situation, which results in overloading the pump.

Do all the piping with 1.5" pipe, and add a 1.5 ball valve between the pump and the filter. You'll need to throttle it a bit during normal operation, but open it wide when backwashing. You should be able to get really, really clear water with that combo.