My pool is 35ish years old. It is a very simple SoCal concrete inground pool-only (play pool 3ft-5ft-3ft approx 20K gals) with just an old-school timer box, pump and DE filter (no spa, no heater, no SWG). There are 2 skimmers, split main drains (installed during replaster 2 years ago but are capped off) and a dedicated suction port for "thepoolcleaner". The skimmers (30' and 50' away) share a 2" line while the suction port (40ft away) has its own 1.5" line. They come together at the pool equipment to a valve that "blends" the suction between the two sources. The filter is a Purex stainless steel DE model that is, I believe, 60 sq ft. The filter is original save for replacement grids from time to time. Until recently, I only replaced the pool motors over the years because the brass pump (Aqua Flo)) just kept working. Last time, I went with a refurbished Hayward pump (including wet end) because that's what my home protection insurance provided. I have just replaced the motor's capacitor for the second time now in the past two years. I suspect this may be a warning of impending failure.
I have always gone with 2hp single speed motors because that's what was installed when it was new. I'm sure it was never properly "sized" to my specific configuration. I am guessing 2hp may have been overkill and was probably elected (by me) because it was the biggest and baddest at the time. I am starting to research variable speed pumps. I'm intrigued by the lower cost lines (e.g. Black and Decker) due to their favorable reviews, price, warranty and DIY friendliness. The circuit going to the pool equipment is 220V 15A (which might limit some of the higher output models). Now is my chance to properly size the pump to my application. What say the experts? Or do I need to provide more info?
www.troublefreepool.com
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