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Thread: No suction from skimmer, perfect suction from main drain.

  1. Back To Top    #1

    Join Date
    Jul 2015
    Calexico, California

    No suction from skimmer, perfect suction from main drain.

    Hey there, first let me thank you for helping me out here. English is not my first language so sorry if i run into son grammar mistakes.

    My problem is, my skimmer wont suction (i know it work tho, cause i put a tennis ball on the skimmer back hole (2 hole skimmer here) and after turning the pump on immediately took it off and the skimmer started sucking water like a champ. So.. why it wont work simple by just being there without the ball and with his valve and basket?

    any help would help.

    Thank you !

  2. Back To Top    #2
    Mod Squad
    Join Date
    Aug 2012
    DFW, TX

    Re: No suction from skimmer, perfect suction from main drain.

    I don't know. The second hole is drawing water from the main drain or equalizer line going to the pool wall under the skimmer. I think so e skimmers have a control valve/disk that can control the flow between drain and skimmer. Maybe yours is missing?
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  3. Back To Top    #3

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    Jimrahbe's Avatar
    Join Date
    Jul 2014
    Bedford, TX

    Re: No suction from skimmer, perfect suction from main drain.


    I'm not sure I understand the problem. How do you know the Main Drain works and the Skimmer does not? Does your pool have more than one input to the pump, where you can select the "Main Drain" and/or "Skimmer" by moving a valve? If not, then the Main Drain is most likely plumbed into one of the two holes in the bottom of the skimmer. At that point I'm not sure you can tell the difference between the water coming from the skimmer and the water coming from the main drain. Do you have a spaceship looking thing right under the Skimmer basket?


    Jim R.
    Finished in 2015 - 17K Gal, IG, 20' x 25' Almost Rectangular Pool, Pebble finish, three rockport water falls. Pentair Equipment: EasyTouch 4, IC40 SWG, 3 HP VS Pump, CCP5200 Cartridge Filter.
    TF100 with SpeedStir and SampleSizer, ColorQ Pro 7, Dolphin Premier Robot Cleaner, added Screen Logic 2.

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