Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 2 12 LastLast
Results 1 to 20 of 25

Thread: Cloudy water worse after adding chlorine

  1. Back To Top    #1

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Cloudy water worse after adding chlorine

    We are working on getting our pool up and running and everything is looking good except the water is kind of cloudy. It's clear enough we can see the bottom of the pool but it is not as clear as it was before we added water this year. I've also noticed that the cloudiness becomes worse after adding chlorine. All of our numbers that I can test look good (see below).

    Over the winter we lowered it down go just below the skimmer and the water was very clear at the start of spring. We had to use well water to fill it the rest of the way up. Last year when we top off with well water it turned the water a greenish color but this improved quickly with sequa-sol and running the filter. This year I've added sequa-sol about 1 week ago and while it never ex turned green, it is still cloudy.

    Any thoughts on how to clear this up?

    Water temp- 62
    Free Chlorine- 4
    Combined chlorine- 0
    Ph- between 7.8 and 8.0 (hard to read the colors exactly)
    Cya- 50

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    18,768

    Re: Cloudy water worse after adding chlorine

    Are you using Cal-hypo "shock" to chlorinate? That's the most common cause of cloudiness immediately after adding stuff. High pH can cause Calcium cloudiness, and you will have localized really high pH from the lye in the bleach that should dissipate.

    What is your CH reading? What are you chlorinating with? And have you adjusted the pH down?
    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!

  3. Back To Top    #3

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Cloudy water worse after adding chlorine

    We use liquid chlorine only. I do not have the test for measuring CH. I need to purchase acid to lower ph but we ran about 7.8 all year last year no matter how often we dropped it lower.

  4. Back To Top    #4
    Casey's Avatar
    Join Date
    Apr 2007
    Location
    SW PA
    Posts
    10,157

    Re: Cloudy water worse after adding chlorine

    What test kit are you using? Your FC is low too.
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

  5. Back To Top    #5

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Cloudy water worse after adding chlorine

    Tftest kits fas/dpd The recommended level is 4 on the pool math calculator on this site

  6. Back To Top    #6
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,495

    Re: Cloudy water worse after adding chlorine

    Quote Originally Posted by newguyjosh View Post
    Tftest kits fas/dpd The recommended level is 4 on the pool math calculator on this site
    you just bought the single FAS-DPD test, not as part of a kit?

    The TF100 kit is recommended because it has all the necessary tests included. The cloudy water is indicative of a CH issue, so we need to know your CH level.

    But, with 50 CYA 4 FC is the absolute minimum - not a target. You should be targeting 6 or,so to make sure that you never go below 4. So, if you have gone below 4 on a regular basis you may have an algae issue about to rear its ugly head.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  7. Back To Top    #7

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Cloudy water worse after adding chlorine

    I purchased a few individual tests but not the whole kit. Water temp has been mostly in 50s so algae not a concern right now. I'll have to take to local store to get ch tested

  8. Back To Top    #8
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,495

    Re: Cloudy water worse after adding chlorine

    We generally find pool,store testing to be poor at best, but you have been around here for a while and probably know that
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  9. Back To Top    #9

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Cloudy water worse after adding chlorine

    I typically wouldn't go to pool store either but they do use drop tests not a machine. Any other thoughts except ch? Not sure why that would be the problem when only change was adding a few inches of water. Could it still be metal/iron in the wAter?

  10. Back To Top    #10
    Casey's Avatar
    Join Date
    Apr 2007
    Location
    SW PA
    Posts
    10,157

    Re: Cloudy water worse after adding chlorine

    Well, What has been your chlorine source for the last few years?
    I'd bet you my bikini you'll never get TFP water from a pool store!

    24' Sharkline Venture De Filter

  11. Back To Top    #11
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Cloudy water worse after adding chlorine

    It is possible that CH has been building up in your water for some time (from either natural sources, or chemicals that have been added and this clouding is a sign that things may be about to come toppling down if you don't get it under control.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
    I use and endorse TFtestKits TF-100 from http://tftestkits.net
    ~Remember TFP counts on your donations to keep this site ad free~

  12. Back To Top    #12

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Cloudy water worse after adding chlorine

    Quote Originally Posted by Casey View Post
    Well, What has been your chlorine source for the last few years?
    Been using liquid chlorine only

  13. Back To Top    #13
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,998

    Re: Cloudy water worse after adding chlorine

    Quote Originally Posted by newguyjosh View Post
    Tftest kits fas/dpd The recommended level is 4 on the pool math calculator on this site
    According TFP? This chart Chlorine CYA Chart says the min is 4, target is 6 and shock is 20 for CYA of 50. That means if FC gets below 4 that algae start to grow.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  14. Back To Top    #14

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Filter help

    Thread merged by Divin Dave


    This is our second year at this house with the pool. When we purchased the house the pool included a cartridge filter as well as a sand filter. The previous owner had the cartridge filter hooked up saying he liked it better. Last year we used the cartridge filter all year and had to remove it to clean it about every 1 to 1.5 weeks. (pleatco PA100n filter). This year our pool water looks clean and all are numbers are good but the water is kind of cloudy. This year the filter needs changed every day or more frequently. The pressure will go from around 13-14 PSI to 19 PSI in as little as a few hours or by the next day at the most.

    So any thoughts on what is going on? Why are the filters getting dirty so quickly? Is there a problem with the pool or the filters (1 filter is new last year the other one came with the pool).

    I've also thought about trying the sand filter but don't know for sure if it works. It is a hayward filter. How can I check to see if it works before hooking it up? Would it need new sand? Anything I need to be aware of before using it? Should I try it out or stick with the cartridge filters?

    Thanks
    13500 gallon AG (24' round), 100 sf cartridge filter, Hayward 1hp pump, pool 10-15 years old with recently replaced liner

  15. Back To Top    #15
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,495

    Re: Filter help

    I'm going to ask for a full set of test results as I don't think the problem is the filter, but what the filter is capturing.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  16. Back To Top    #16
    Defgufman's Avatar
    Join Date
    Mar 2015
    Location
    Savannah GA
    Posts
    577

    Re: Filter help

    Looking like SLAM TIME.....we need numbers
    Inground 13,200 gal Vinyl, Pentair 3/4 hp pump, Pentair Sand Dollar filter, Polaris 280

    Pool School, Pool Math, CYA to FC ratio chart, Testing Kits

  17. Back To Top    #17

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Filter help

    Water temp is 68
    FC= 5
    CC= 0
    PH=7.4
    CYA=40

    i dont have the test for TA
    Last edited by newguyjosh; 05-05-2015 at 08:03 PM. Reason: Typo oh ph

  18. Back To Top    #18
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Columbia, SC
    Posts
    8,495

    Re: Filter help

    As I stated in your earlier thread I think you have algae growing and this is what is plugging upi your filter so quickly. You should read the directions on SLAMing your pool in the How To section of Pool School and follow that procedure completely to the end.

    CC is 0.5 or lower;
    You pass an OCLT (ie overnight FC loss test shows a loss of 1.0 ppm or less);
    And the water is clear.

    When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  19. Back To Top    #19
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    23,998

    Re: Cloudy water worse after adding chlorine

    +another that your filter issue is algae growing in the water. It almost always is. Algae grows for quite a while in clear water before the pool turns cloudy and then turns green. Measure your daily chlorine usage for a couple of days and do an OCLT.
    http://www.troublefreepool.com/conte...loss-test-oclt

    Or go ahead and SLAM as suggested.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  20. Back To Top    #20

    Join Date
    Jun 2010
    Location
    Central Indiana
    Posts
    92

    Re: Cloudy water worse after adding chlorine

    Well I got home from work yesterday planning to SLAM based on all of the comments and the water was suddenly clear...I changed out the filter and then did an OCLT. The chlorine measured the same last night as it did this morning, no loss noted. Water is still clear as well. However, the filter that I just put in last night is already clogged up it went from 13PSI to 19 PSI in less than 12 hours. What next?

    Thanks
    13500 gallon AG (24' round), 100 sf cartridge filter, Hayward 1hp pump, pool 10-15 years old with recently replaced liner

Page 1 of 2 12 LastLast

Posting Permissions

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