Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 5 of 5

Thread: Pump power

  1. Back To Top    #1

    Join Date
    Aug 2013
    Location
    Mcallen, TX
    Posts
    39

    Pump power

    I have an 18k gallon pool and have a 1 hp pump feeding from a main drain and two skimmers. I was wondering if 1 hp enough. I have a waterfall that is about 6 ft high with a 2 hp pump, does anyone think maybe when they installed the equipment they switched the pumps? I ask because I notice that I have to play around with the Valves to get the right suction at one end of the skimmer since there isn't enough for both skimmers and main drain.


    Thanks,


    JR
    17k gallon pool, pentair whisperflo pump 1hp, Pentair FNS Plus 36, SWG Hayward Turbo Cell 15 40,000g, blue quartz with pebble finish landings/bench, ultra pure water cleaner.

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

    Re: Pump power

    A 1 HP pump should be more than enough for that pool. Normally I recommend using a two speed 1 HP pump on low speed in that situation. Meanwhile, it is very common to need a large pump for a waterfall.

    What do you mean by "there isn't enough for both skimmers and main drain"?
    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
    Aug 2013
    Location
    Mcallen, TX
    Posts
    39

    Re: Pump power

    Thanks for the reply! If my valves for both skimmers and main drain were all open I would get almost no flow on the skimmer. So what I do is have one skimmer fully open, and the main drain and other skimmer partially closed. I notice I get a lot of build up of debri on top if both skimmers are fully open. I usually open skimmer on down wind.
    17k gallon pool, pentair whisperflo pump 1hp, Pentair FNS Plus 36, SWG Hayward Turbo Cell 15 40,000g, blue quartz with pebble finish landings/bench, ultra pure water cleaner.

  4. Back To Top    #4
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Pump power

    I would leave the floor nearly closed off to get better skimming.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  5. Back To Top    #5
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,489

    Re: Pump power

    I agree with JB. MDs are overrated and not really required. You are much better off taking flow from just the skimmers.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •