I just replaced my entire pad for the exception of my filter. I have 1 1/2 plumbing below. I had no idea what pump was on the pool before. My psi with pulling equally from hot tub and pool are about 16. Used to be with old pump 4psi. When using the hot tub psi is 26. What do you think about downsizing impeller to 3/4?
22,000 gal pool