Just wanted to add a data point for future searchers who are contemplating replacing their pool pump.

I have designed a roof-mounted solar heating system for my pool (approx. 22k gallons; in-ground; gunite), and will be installing it next weekend (assuming all of the components arrive this week). I figured this would also be a good time to replace my circulating pump.

Old pump was a 2 hp American Products of a 1987 vintage. Replacement is a 3/4 hp Hayward Northstar.

Install was straightforward, and is this thing *quiet*! Filter pressure went from 10 psi to 18 psi, and flow is noticeably stronger. Plus, I figure I will save about $35 a month in operating costs.

Two thumbs up.

pj