I'm building a small 7000 gallons inground pool with no spa or water features. I've already had a lot of trouble convincing the pool builder to substitute the "included" 1.5HP for a lower HP pump. I wanted 3/4hp, but finally settled for a 1HP pump. The seller gave me the weird look and commented that this was the first time that somebody asked for a smaller pump and that it didn't make much sense to him.
The pool delivery guy also looked at me like I was a freak for requesting a smaller pump and so did some of the installers.
I've explained them that I was only wasting electricity with the bigger pump and that filtering a such a small pool with such a big pump was like trying to drive a nail through drywall with a sledgehammer.
I'm also concerned about excessive pressure the pump would cause in the small 1 1/2" inch pipes used to plumb the pool and in my solar panels.
Is there any good documentation available on the web to support the importance of proper sizing of the pump for the pool?