Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 4 of 4

Thread: filter problem

  1. Back To Top    #1
    delfargo's Avatar
    Join Date
    May 2008
    Location
    some cornfield in central illinois
    Posts
    86

    filter problem

    well, i don't know what's happening with my filter. i was vacuming yesterday, and as i was doing so, i noticed the water getting coudy and i turned around to see a giant cloud behind me. i looked at the return, and it was blowing everthing i was vacuming up BACK INTO THE POOL !!! why would that be happenig? i just shut 'er down and walked away in disgust. almost took a sledge hammer to pool, but calmer heads prevailed. so, what should i do? any ideas? thanx.
    30' round above ground - 21000 gal. (shade ONLY in the evening),
    pentair dynamo 1.5 hp pump,
    pentair sand dollar 150 lb.sand filter,
    bbb method.

  2. Back To Top    #2

    Join Date
    Mar 2007
    Location
    Coastalish 'down easter'
    Posts
    4,160

    Re: filter problem

    Because it's easier than opening the filter, the first place I'd look is the gasket in the miltiport. Remove the 6 - 10 bolts that hold the top on and see if the 'spider gasket (wagon wheel)' is warped or ripped (if you've had water going out the 'waste' line while the system is on 'filter' - this is the most probable cause -- without that gasket in good shape and fully sealing, the water entering the multiport goes 'everywhere')

    If it's not the multiport - open the filter to see if the sand has channeled (a hole or gap from top to bottom of the sand) If you open it, feel the sand - it should be granular and 'fluffy' - if it's channeled or has clumps, tell us and we'll help determine if you need to replace the sand or can just clean it -- and we'll tell you how to do what needs be done to get the filter back to normal operation.

    Good luck with your investigation! We'll be here to help
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

  3. Back To Top    #3
    delfargo's Avatar
    Join Date
    May 2008
    Location
    some cornfield in central illinois
    Posts
    86

    Re: filter problem

    THANX ALOT, WASTE !
    one question : i have no shut-off valves on the hoses going from the skimmer into the pump, from the pump to the filter and from the filter to the return. i'm assuming i'll need to un-hook the hoses to and from the pool and block them up somehow when taking the filter apart, right? otherwise i'm losing water all over the place, correct ? thanx again for the help.
    30' round above ground - 21000 gal. (shade ONLY in the evening),
    pentair dynamo 1.5 hp pump,
    pentair sand dollar 150 lb.sand filter,
    bbb method.

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,887

    Re: filter problem

    You can block the hose/fitting at the pool end, instead of unhooking them. Sometimes you can do this will an appropriately sized ball. More reliably, you can use expanding pipe plugs, sold for winterizing in-ground pools.
    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

Posting Permissions

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