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

Thread: Numbers ok but water still cloudy

  1. Back To Top    #1

    Join Date
    May 2011
    Location
    Massachusetts
    Posts
    19

    Numbers ok but water still cloudy

    I got my FC to hold at 15 overnight this weekend for two nights in a row, then changed my sand and cleaned out my filter, added CYA and my CC's have been less than .05 everytime I've tested since.

    My ph was down to 7.0 last night so I added some Borax, this morning it was up to 7.2 so I added a bit more.

    But my water is not clear, it's blue, I can see the bottom step and can make out the bottom but it's not the beautiful clear sparkle that everyone else seems to have.

    Any advice? My numbers as of this am are:

    FC 15
    CC 0
    pH 7.2
    TA 80
    13500 gal 15x30 oval AG, Hayward DE filter

  2. Back To Top    #2

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Numbers ok but water still cloudy

    How long have you been shocking? It can take several days, even weeks, to get completely clear with a sand filter. From start to finish it took about 3 weeks for mine to be completely clear. Since you are passing your FC test, you can add some DE to your sand filter, just enough to bring it up 1 psi, this will aid in clarification. Just pour it in the skimmer. It takes about 2 cups to bring mine up 1 psi, I'd say start with somewhere under half that on yours.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  3. Back To Top    #3

    Join Date
    May 2011
    Location
    Massachusetts
    Posts
    19

    Re: Numbers ok but water still cloudy

    Been shocking for about 12 days now. I assume I need to keep on shocking.

    I'll try the DE.

    Thanks
    13500 gal 15x30 oval AG, Hayward DE filter

  4. Back To Top    #4
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Numbers ok but water still cloudy

    How has the filter pressure been behaving?
    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

  5. Back To Top    #5

    Join Date
    May 2011
    Location
    Massachusetts
    Posts
    19

    Re: Numbers ok but water still cloudy

    Well that is kind of a funny story. We've had the pool for about 12 years, same filter. We always changed the sand every year becuase we didn't know better. Pool store told me last year to not change every year, to wait 2 or 3 seasons, that the small particles of sand could be causing my "haze". The pressure coming out of the return had gone down and down progressively to the point last year and start of this season that I'd have to backwash constantly to get it back up. We chaulked it up to our pump slowly dying because we did have to make a few repairs to it start of last season. Got a fairly new pump from a friend for free (can't beat that!) and thought we'd be ok this season, but alas same old story.

    So when we changed our sand after passing the overnight test we discovered that those legs at the bottom of the filter came off, and boy were they nasty and clogged. Cleaned them up and the water coming out of the return is unbeliveable!! A squirrel could probably surf on it. And it stays pretty strong. Our PSI is now about 15 (was around 20 before that). We always washed it out good but didn't realize those legs came off. And we now have two pumps and this is probably the cause of my aqua bug not working well.

    In other words our pressure is stable and strong.
    13500 gal 15x30 oval AG, Hayward DE filter

  6. Back To Top    #6

    Join Date
    Aug 2010
    Location
    Dallas, TX
    Posts
    4,052

    Re: Numbers ok but water still cloudy

    I wouldn't bother changing your sand for YEARS, if ever.

    Would it be possible for you to shut off your pump, have someone hold a sock over a return, then fire up the pump? That way we can see if you have sand coming out of your filter.
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
    If TFP has helped you, please click to SUPPORT TFP!

  7. Back To Top    #7
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    Location
    SWSuburban Chicago, IL
    Posts
    11,965

    Re: Numbers ok but water still cloudy

    I would try the DE idea. It may take a day or two or three repeating that process but it does help.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

Posting Permissions

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