Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 3 of 3

Thread: Air in suction line to pump basket

  1. Back To Top    #1

    Question Air in suction line to pump basket

    One of my three pumps won't prime up. All pumps and everything else was working fine in March. Turned back on in April and one pump won't prime. Air in the suction line to that pump. All filters have been cleaned. All seals are good. Pump motor is working fine. I suspect a broken or clogged suction line. I (and the local pool service company) filled the pump basket with water many, many times trying every combo of other 2 pumps on/off and can't get it to pull in water on the suction side. Motor is definitely working. Any ideas or suggestions?
    32,000 gallon gunite, 9.5 foot deep end, 4 waterfalls and 3 fountains, 3 Pentair 2-HP pumps, saltwater, Jandy 4-cartridge main filter for pump #1, 2 Pentair single-cartridge filters for pumps #2 and 3.

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

    Re: Air in suction line to pump basket

    Welcome to TFP!

    Take a look at the suction side air leaks article in Pool School in the Solving Problems section. That has several suggestions.
    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

    Re: Air in suction line to pump basket

    Thanks TFP Admin, that is a good article.
    1. Pump basket lid is OK (recently lubed with silicone).
    2. Basket drain plug is OK.
    3. PVC joints that are inside the pump room are OK. I need to check the ones outside that are above ground.
    4. I know of one valve box and the pool service guys looked at the valves/connections but I will check them again.
    5. Water level is not losing water but then I've not run the problem pump for more than a few minutes at a time for fear of burning it out.
    6. No spitting at this point since I can't keep the prime water in the pump basket for more than a split second!
    32,000 gallon gunite, 9.5 foot deep end, 4 waterfalls and 3 fountains, 3 Pentair 2-HP pumps, saltwater, Jandy 4-cartridge main filter for pump #1, 2 Pentair single-cartridge filters for pumps #2 and 3.

Posting Permissions

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