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Thread: Right size filter and pump?

  1. Back To Top    #1

    Join Date
    Jun 2012
    Location
    L.I. NY
    Posts
    13

    Right size filter and pump?

    New home owner here which came with a 20+ year old pool. After having some suction problems - which I've cleared up - I did some research on filter and pump sizes. My IGP is 20x40 and holds 33,000 gal. According to this site http://www.swimmingpoolsetc.com/pool-fi ... mation.htm I should be running a 2hp pump with 60sf DE filter. My set up is 1 1/2hp pump and a 36sf DE filter. I don't know the size of the pipes.

    Am I ok? It's not like I can do anything about this right now and the pool seems fine. Water was tested after 3 weeks and came back perfect. I did my first backwash last weekend and all seems good to go.
    20x40 IGP - Nautilus NS36 DE Filter - Haward 1 1/2hp Super Pump - Haward Multi Valve

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Right size filter and pump?

    Sure, you are alright where you are. Ideally you should have a smaller pump (or a two speed pump) and a larger filter. A smaller, or two speed, pump will save you money on electricity, and a larger filter will improve system efficiency and increase the amount of time between backwashing/cleaning the filter.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    Jun 2012
    Location
    L.I. NY
    Posts
    13

    Re: Right size filter and pump?

    Thanks for the response. I guess when the time comes, I'll do my best to make the right upgrades.
    20x40 IGP - Nautilus NS36 DE Filter - Haward 1 1/2hp Super Pump - Haward Multi Valve

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