As in my sig, I have a 25k gal pool. It has 1.5" pipe intake and returns. From what I read, I need to calcualte the head, but right now I can only state the DE filter reads 25 when running.
The pump looks very old, and is a 2HP. Given my power bill jump of $100/month (from last house to this house in teh same city), I'd like to drop down to a smaller pump, but I'm not sure how small is too small?
Is 1HP small enough, or can I go even smaller?