Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 7 of 7

Thread: sand filter not draining

  1. Back To Top    #1

    sand filter not draining

    took black cap off filter water not draining out what could be the prob.
    30K gal, inground/vinyl, S-244T filer w/Zeosand, 1.5HP pump, H-300 gas heater, Liquidator, CL-220 chlorinator, Blue Diamond robot, Poolskim

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,083

    Re: sand filter not draining

    More info, please.

    What brand filter?

    What model?

    Which black cap?

    Why did you take it off? Are you trying to drain it?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Re: sand filter not draining

    hayward sand filter not sure on model right now black cap on bottom of filter to drain water out to close down for winter took cap off just little water came out
    30K gal, inground/vinyl, S-244T filer w/Zeosand, 1.5HP pump, H-300 gas heater, Liquidator, CL-220 chlorinator, Blue Diamond robot, Poolskim

  4. Back To Top    #4

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,083

    Re: sand filter not draining

    Frequently, those drain caps have a second, internal cap that should not be completely unscrewed but when partially turned, will allow water to come out without losing sand. Not sure if yours has that or not.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  5. Back To Top    #5

    Join Date
    Oct 2007
    Location
    Cedar Hill, TN
    Posts
    248

    Re: sand filter not draining

    Did you take the top off as well?
    What condition is the sand in?
    12500 AGP 2HP Sand filter
    Five years on BBB & loving it!

  6. Back To Top    #6
    spishex's Avatar
    Join Date
    Oct 2008
    Location
    Hillsborough, NC
    Posts
    1,375

    Re: sand filter not draining

    Open your multiport. Put it either between positions or in backwash/rinse. Air will be able to easily displace the water that way. Even if it's just trickling that's fine. It will drain out in time. There's a small screen in there, not unlike the laterals inside the filter, that blocks sand from coming out with the water. That screen will get pretty gunked up over time but should still allow enough water through to slowly drain the filter.

  7. Back To Top    #7

    Join Date
    Jul 2009
    Location
    Shawnee, Kansas
    Posts
    92

    Re: sand filter not draining

    What spishex said...it probably has a vacuum lock or similar. I have encountered that as few times over the years with mine. Mine does trickle too, but after a while, it will be completely drained. I actually just leave that cap off all winter long.
    Matt
    20,000 gallon, sand filter, IG vinyl

Posting Permissions

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