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

Thread: Air in pump basket

  1. Back To Top    #1

    Air in pump basket

    I have a Pentair WhisperFlo, 2.0Hp. There is constantly air in the pump basket, lots of little bubbles. I believe that this air is coming from the suction side. I see no leaks in the plumbing or the pump. The O-ring is lubbed & there are no visible cracks in the tip.
    Any ideas as to what can be causing this?
    126,000 indoor recreational pool with a retractable roof.
    "The meeting of two personalities is like the mixture of two chemicals; if a reaction occurs, both are transformed.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887

    Re: Air in pump basket

    Welcome to TFP!

    If the water level is just slightly too low the skimmers can draw some air in down the middle of the vortex. It is also possible to have leaks in the plumbing that are very difficult to detect.
    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
    Feb 2008
    Location
    Flower Mound, TX
    Posts
    5,062

    Re: Air in pump basket

    Depending on the age of your equipment, you might have a valve gasket that may need replacing.

    This type of leak is tough to find. You can try to see if it is a valve gasket by isolating various valves in open and closed positions, but this may not give you the answer. It's not like a water leak where the evidence presents itself inconclusively. When the system is pulling air into itself in the manner that you describe, you can't see the source with your eyes.

    I have a very small leak just like you have. Had it for as long as I can remember. I've tried to find it to no avail. I can adjust my skimmers and cleaner valves to a point where it stops pulling air into the system though and so I just live with it.
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

  4. Back To Top    #4

    Re: Air in pump basket

    Thank you, I will check the valve gasket.....if it's in the plumbing, I may have to live with it.
    126,000 indoor recreational pool with a retractable roof.
    "The meeting of two personalities is like the mixture of two chemicals; if a reaction occurs, both are transformed.

  5. Back To Top    #5
    Melt In The Sun's Avatar
    Join Date
    Oct 2009
    Location
    Tucson, AZ
    Posts
    3,897

    Re: Air in pump basket

    If you think the air leak is above ground, you could try placing a soaking wet towel on any location that you think could be leaking air (pipe joints, pump basket lid, etc). If you get the wet towel on the leak, it will suck water from the towel and the bubbles should stop.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
    TF Test Kits -- PoolMath -- Pool School
    Make each day your masterpiece. - John Wooden

Posting Permissions

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