Hello all, I have a Hayward 1 1/2 HP water feature pump Model # SP3210X15 that moves too much water. It serves my rock water falls and 2 bubblers on the sun deck. The water flow is too much and too noisy. It’s hard to have a conversation when it’s running. Can I install a smaller impeller on this pump to slow down the flow? If so, does anyone have the info on part numbers? Also, the motor has an open winding so does anyone have info on installing a smaller motor to match the smaller impeller to save costs? A new pump is too expensive and I’d rather just replace the motor and impeller.