Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Blue very cloudy water

  1. Back To Top    #1

    Join Date
    May 2014
    Location
    Sanford. NC
    Posts
    5

    Blue very cloudy water

    Hi!.....I am new here but not to having a pool. I have had this pool for about 15 years and have never had this much trouble. The water is a bluish white color and been that way for 3 weeks. When I backwash the filter, it is like thin milk comming out and is staining my driveway white. I used to use the BBB method but somehow got away from it. I am using cal-hypo to shock with and have also put about 10 gal of 8% bleach in just recently. The underside of the clear basket cover on my pump is solid white(cannot see through it), very hard to scrape off using finger nail. Have also noticed white around the waterline. Thought it was just bleached out from chlorine ( and most is) but can scrape off with finger nail. I also quit using a cover many years ago because I could not get it out without dumping the 1000lbs (not quite) of wet leaves back into pool. I went to just a leaf net and now much easier but still get some in bottom of pool. This year I took off leaf net, water was green so started putting in shock and water turned bluish green and then onto blue. Started clearing up so I could a big dark clump in that corner that everything goes to. Got leaf net and started getting them out, ofcourse left a green slimmy mess in water but would settle and start to clear again. Got another big net full out and water turned green so added shock, water turned blue and cloudy and have not seen the bottom since. Have been putting 4 to 6 lbs daily in and still no improvement. I go to pool store and they tell me to keep shocking and vacuum to waste. I can't see anything to vacuum. I was brushing the sides and bottom, but pole slipped into pool and cannot find it. Today I took a sample to store again and he gave me (whoops....sold) some floc and said to put in and cut off pump and let sit overnite and then vacuum to waste tomorrow. I had a taylor test kit up till a tornado came through here 2-3 years ago and I guess someone in northern NC has it now, just havent replaced it. Anyway hear are my test figures from this morning:

    FC - OVR 20.43
    TC - OVR 21.63
    CC - 1.2
    PH - 7.9
    Hardness - 450
    Alkalinity - 83
    CA - 34
    Copper - .1
    Iron - .1
    Sat. Index - 0.39

    Any help on this would be greatly appreciated. I am at the point of ordering dirt to fill in.
    Thanks
    18'X32' inground vinyl pool, 1.5 hp pentair pump with jacuzzi sand filter

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

    Re: Blue very cloudy water

    Welcome to TFP!

    I can't tell everything that is going on, but clearly some of what is happening is calcium clouding. Your hardness level is already a bit high and PH is on the high side as well. Combine that with adding cal-hypo and you are essentially certain to get some calcium clouding. Calcium clouding can't usually be completely cleared by the filter. You need to get the CSI to be a little negative and the calcium clouding should clear right up. Now there might be something else going on as well, so that may or may not solve the whole problem, but it should get rid of the milkiness.

    To lower CSI, reduce the PH to around 7.2 to 7.3, and then see if things start to clear up.

    Separately, if your FC and TC results are correct, and I kind of doubt that, then you still have CC above 0.5 and need to continue at shock level. However, I don't believe the test results are likely to be precise enough to actually say what the CC level is.
    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
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Blue very cloudy water

    Well.... you've probably read enough here to know you need a test kit, so I'll spare the stern lecture.

    Milky white stuff sounds like maybe the pool store had you add phos-free. If you've been using Cal-hypo, they'll make a mess. And your CH is high enough already, so switch to liquid shock or plain old bleach to keep FC up.

    Check out this recent thread, tell me if it sounds familiar.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  4. Back To Top    #4

    Join Date
    May 2014
    Location
    Sanford. NC
    Posts
    5

    Re: Blue very cloudy water

    Thanks. I have been reading this forum for a while and have started looking sideways at my friend the pool store. Should I just go with the PHdown or do you recommend something else.
    18'X32' inground vinyl pool, 1.5 hp pentair pump with jacuzzi sand filter

  5. Back To Top    #5

    Join Date
    Jan 2013
    Location
    Houston, TX
    Posts
    1,079

    Re: Blue very cloudy water

    Muriatic acid. Does the same thing - way cheaper ... if you can return the ph down.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
    Pool School -- Pool Math -- TF-Test Kit

  6. Back To Top    #6

    Join Date
    May 2014
    Location
    Sanford. NC
    Posts
    5

    Re: Blue very cloudy water

    Richard320.....yes that sounds very familiar
    18'X32' inground vinyl pool, 1.5 hp pentair pump with jacuzzi sand filter

  7. Back To Top    #7
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Blue very cloudy water

    Quote Originally Posted by ronkel View Post
    Thanks. I have been reading this forum for a while and have started looking sideways at my friend the pool store. Should I just go with the PHdown or do you recommend something else.
    Muriatic Acid seems to work best. All it adds is Hydrogen, Chlorine, and Water. The pH down powder is usually some sulfur compoun, and with your milky mess, who wants to possibly add that smell to it? http://www.troublefreepool.com/conte...pool-chemicals
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  8. Back To Top    #8

    Join Date
    May 2014
    Location
    Sanford. NC
    Posts
    5

    Re: Blue very cloudy water

    Thanks Karma, I've never used muriatic acid in this pool before. Do you just pour it in or should it be diluted first?
    18'X32' inground vinyl pool, 1.5 hp pentair pump with jacuzzi sand filter

  9. Back To Top    #9

    Join Date
    Jan 2013
    Location
    Houston, TX
    Posts
    1,079

    Re: Blue very cloudy water

    Pour it in gently in front of a return. Use the pool math link in my sig to find the appropriate volume.
    TFP Moderator Chris V. ~16K Pool & Spa, 48NSF DE, IG Plaster Circa 2000, Intermatic PE653, Challenger pump with a 2 speed B2984, 20gal stenner chlorine injection, Houston, TX
    One cannot follow Islam and Christianity at the same time, nor can one follow pool store methods and TFP at the same time.
    Pool School -- Pool Math -- TF-Test Kit

  10. Back To Top    #10

    Join Date
    May 2014
    Location
    Sanford. NC
    Posts
    5

    Re: Blue very cloudy water

    Thanks Richard....I just read that post and it answered the above question
    18'X32' inground vinyl pool, 1.5 hp pentair pump with jacuzzi sand filter

Posting Permissions

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