Response to hello! i'm looking for a replacement for my SP1750 (1/2HP) for an in-ground swim spa (3K ga). the pool has rooftop solar and we hope to add a vac-line when we replace the liner (= 50 feet of suction head + 15 ft of line to solar). currently, i'm using a 50sqft. cart-filter. if moving to this pump, would I need to upgrade to a 90-120sqft filter because of flow-rates the pump puts out? what other things should I consider in the equation?

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