I have a 1 1/2 HP Hayward Tristar pump that runs the waterfall and bubblers. We always had to cut the valves almost all the way off because the water flow was greater than we wanted - a gentle brook, not roaring rapids. A couple of years ago, I replaced the impeller with a 1/2 HP impeller. That caused a swing too far to the other side. The valves are all the way open and the flow is about where we want it, but the pump is extremely noisy. I want to replace the impeller again, but I'm not sure if I should go with a 3/4 or 1 HP impeller.
What would you all suggest?
Thanks.
What would you all suggest?
Thanks.