Pool filters always draw from the top of the pool, so as to provide leaf skimming. The pump should be big enough, looking at your available power, and assuming no cavitation (entrained air).Īs a rule of thumb, I always design pool filters to turn the water over within 3 to 4 hours, and your pump should be capable of this. I don't know what you can do othee than replace the filter. As you say, half the sand is not in the flow path and useless. I have never seen a filter that exits at the halfway level. The water flow should be in the top and out the bottom. It sounds to me that the system is poorly designed and undersized.įirst to your sand filter. RE: Swimming Pool pump/filter sizing electricpete (Electrical) I'm thinking about moving the pump/filter closer to the pool cutout connections and reducing that length. Pump is running 24 hours per day.Īlso we have about 10' of hose on suction and discharge of the pump/filter. Everytime we backwash we get tons of discolored water out (the filter is removing Pump discharge filter after going thru downstream filter is 10psig. Not sure how well it's circulating down below. Pool inlet/filter outlet has a jet which creates fairly high velocity which keeps the water circulating pretty well (a leaf on the surface goes all the way around in about a minute). Pool outlet/pump inlet has a skimmer which collects lots of stuff. No documentation came with the thing and the folks who sold it aren't helping either.īoth inlet/outlet connections are near the top of the pool. Of course this reduces my sand surface area exposed to water, but it worked very poorly with less sand. I filled with sand to 3/4 since it seems like only the sand above the outlet connection has any purpose (sand below is not in the flowpath). I once opened the filter and saw that the normal flow path water comes in the top, and leaves at screened connections half-way up the sphere. I believe this gives approx 13,000 gallons.Ĭentury Pool/Jetted Pump Motor.

I'm looking to confirm or disprove.Ģ4' diameter above ground pool 52' tall (water level 48'). Of course they'd be happy to fix it at a cost of $700. The local pool company has worked through it with us and their conclusion is that the pool and filter is undersized. We tried lots of chemistry treatments etc which I'd prefer not go go in to. It started up pretty well but have been having lots of problems keeping the water clean. Relatively new pool provided by the cheapest bidder (not in town). In particular thumbrules for pump and filter requirements based on pool volume. I'm looking for a more technical reference.:ĭoes anyone know of a place to find information on sizing of a swimming pool pump and filter? I tried searching the normal search engines and only came up with a lot of commercial bs.

Century 1081 pool pump duty cat #b022