Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 19 of 19

Thread: Cloudy water with chemistry ok?

  1. Back To Top    #1

    Cloudy water with chemistry ok?

    Just got back from 1 week vac and my pool looked like this with stains all over the bottom.
    [attachment=0:22nchq8o]IMG00172-20120818-1902.jpg[/attachment:22nchq8o]
    I did a backwash on my sand filter and let the vacuum run for 24h.
    I also checked my chemistry and everything seams in order:

    Temp 82
    Salt 3000
    FC 11
    CC 0
    PH 7.4
    TA 70
    CH 190
    CYA 65


    Unfortunately my water looks very cloudy right now and the filter doesn't seam to filter the small particles very well that have been stirred up from running the vac.
    I ordered De after reading thorough some of the advice

    I hope somebody could let me know how to get my pool sparkling clean and also for future reference how to prevent the residue on the bottom (more frequent vac).
    Attached Images Attached Images
    22000 gallon fiber glass Pool, 1HP Hayward pump , Sandfilter, Goldline T-15 SWG,
    Home brew coil Solar System http://builditsolar.com/Projects/Poo...ol_heating.htm,
    TF-100 test kit

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,082

    Re: Cloudy water with chemistry ok?

    You must shock the pool. You must also do it according to the process described in Pool School.

    Chlorine held at shock value and aggressive brushing of the sides and walls will, at first, make the pool worse and then clear it up as you continue the process.

    Algae grows in the presence of inadequate chlorine so to prevent that algae in the future, you will have to constantly maintain adequate chlorine levels
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Jul 2012
    Location
    Dumfries & Galloway, Scotland
    Posts
    296

    Re: Cloudy water with chemistry ok?

    ^ +1 for Dave's post

    Regards
    Stuart
    Stuart Murray
    Scotland UK
    UK NPPOC

  4. Back To Top    #4
    Christian's Avatar
    Join Date
    Jul 2012
    Location
    Sacramento, California
    Posts
    304

    Re: Cloudy water with chemistry ok?

    After you complete the shock process if there are still stains you can use ascorbic acid (vitamin C).

  5. Back To Top    #5

    Re: Cloudy water with chemistry ok?

    Thanks for the quick feedback.
    I just don't quite understand how I can have algae with CC being 0?
    Also my FC is 11.
    Are you guys saying I am having algae because there is stuff on the bottom?
    22000 gallon fiber glass Pool, 1HP Hayward pump , Sandfilter, Goldline T-15 SWG,
    Home brew coil Solar System http://builditsolar.com/Projects/Poo...ol_heating.htm,
    TF-100 test kit

  6. Back To Top    #6

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: Cloudy water with chemistry ok?

    Try running an OCLT and see if you are losing chlorine overnight. Make sure the SWG is off during the test. If you have not been brushing, algae can form a resistant coating to chlorine. For the most part, a cloudy pool needs to go through the shock process to clear it up.

    You can have algae in the pool with your CC's=0.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  7. Back To Top    #7

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,082

    Re: Cloudy water with chemistry ok?

    I just don't quite understand how I can have algae with CC being 0?
    Also my FC is 11.
    Are you guys saying I am having algae because there is stuff on the bottom?
    Having CC's is not a test for algae. It is quite common to have algae present and 0 CC's

    You have visible algae so you need to shock your pool to get rid of it.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  8. Back To Top    #8

    Re: Cloudy water with chemistry ok?

    Thanks for your advice. I am learning every day.
    Lost 1.5 overnight and started the shocking process this morning.

    According to the shock level recommendation I should be at 24 FC.
    I went a little bit overboard with the bleach as I ended up @ 35.
    I do have a fiberglass pool. I was reading that higher levels are an issue for Liners.
    Do you think I am OK with the high level? Can I run my automatic cleaning robot in that my chlorine?
    Also is the TF100 accurate to measure this much FC?
    I am asking this as I noticed that after adding the powder (R0870) the water sample gets light pink.
    Then after adding the R0871 drops the water gets a darker shade of pink until it gets lighter and then becomes clear after adding more 871.
    When I tested at lower chlorine levels it always started out dark pink and then got to a lighter pink and then to clear.
    22000 gallon fiber glass Pool, 1HP Hayward pump , Sandfilter, Goldline T-15 SWG,
    Home brew coil Solar System http://builditsolar.com/Projects/Poo...ol_heating.htm,
    TF-100 test kit

  9. Back To Top    #9

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,082

    Re: Cloudy water with chemistry ok?

    Dose carefully. Use the poolcalculator to make sure you hit your intended ppm more closely. The extra FC in your case will have little affect on your pool but that's a pretty big miss and BBB is all about accuracy. Anyway, your pool will be fine.

    The TF-100 FAS/DPD test will test the high FC very accurately. I have tested as high as 70ppm but I think 50ppm is a more realistic upper limit.

    You may need to use just a bit more powder when you are measuring the high FC. Your test results are fine but your description indicates another bit of powder in the initial mix may have made your procedure more consistent. Nevertheless, you can pretty much count on the endpoint ( when the solution turns clear) as being accurate.

    Brush that pool. You need to get that algae up off the floor and suspended in the water so the chlorine can kill it. Keep up with your reports....it sounds like you are on your way to a crystal clear pool
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  10. Back To Top    #10
    UnderWaterVanya's Avatar
    Join Date
    Jun 2012
    Location
    Mint Hill, NC
    Posts
    2,589

    Re: Cloudy water with chemistry ok?

    Quote Originally Posted by Albee
    I am asking this as I noticed that after adding the powder (R0870) the water sample gets light pink.
    Then after adding the R0871 drops the water gets a darker shade of pink until it gets lighter and then becomes clear after adding more 871.
    When I tested at lower chlorine levels it always started out dark pink and then got to a lighter pink and then to clear.
    Do you swirl the water in the tube with the powder before adding the 871?
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

  11. Back To Top    #11

    Re: Cloudy water with chemistry ok?

    I am curious about the care of your pool during the vacation.... is it possible that someone was left with instructions to put X amount of bleach into the pool while you were away and they left that all until the last day and dumped it all in on the day before your return?
    23,000 gallon in ground pool with rock waterfall and spillover spa, Aqualink control system, Polaris 380 cleaner, Purex Triton Clean&Clear Plus cartridge filter. Located in The Woodlands, Texas.

    Pool owner since Nov 2008, Trouble Free since April 2009. Happy to help when I can.

  12. Back To Top    #12

    Re: Cloudy water with chemistry ok?

    am curious about the care of your pool during the vacation.... is it possible that someone was left with instructions to put X amount of bleach into the pool while you were away and they left that all until the last day and dumped it all in on the day before your return?
    I have a saltsystem and that takes care of the chlorine and that worked fine.
    Its hard tell what triggered it.
    I believe I had something already going on in the pool and it just got worse with the rain we had going on and I also had a dead mouse in the skimmer that was already rotten when I came back.

    I am just glad I am getting advise from you folks here on how to get rid of it.
    22000 gallon fiber glass Pool, 1HP Hayward pump , Sandfilter, Goldline T-15 SWG,
    Home brew coil Solar System http://builditsolar.com/Projects/Poo...ol_heating.htm,
    TF-100 test kit

  13. Back To Top    #13

    Re: Cloudy water with chemistry ok?

    Update on day 3 of shocking:
    Pool looks crystal clear since 1.5 day. Yesterday FC dropped to 19 during the day. At 6pm I put some more bleach into the pool and reached FC of 30.
    That was the first time I added some after that initial over shocking.
    I added some DE to the sand filter after day 1 and that really cleared up the cloudiness. Of course I had to backwash after 0.5 days as it was picking up so much.

    Overnight loss was about FC 1.0ppm to 1.5ppm
    I am saying about as I am having a hard time measuring it accurately.
    I am always measuring twice and I am having a hard time getting two of the same results.
    I am cleaning the test tube with clear water and rinse it pretty good with pool water, but most of the time I am getting like on the first count 59 drops and and the time with a fresh start like 60.
    Any suggestions or is this normal at those high chlorine levels?

    Also when is it save to use the pool again?
    Can you swim in water with high chlorine levels?
    Is there like a max level of FC and I need to wait till like say below 20 to go in or is OK to jump in even at 30?
    22000 gallon fiber glass Pool, 1HP Hayward pump , Sandfilter, Goldline T-15 SWG,
    Home brew coil Solar System http://builditsolar.com/Projects/Poo...ol_heating.htm,
    TF-100 test kit

  14. Back To Top    #14
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Cloudy water with chemistry ok?

    We say it is safe when the FC is below shock level and the CC are not more than 0.5ppm and you can see the bottom of the pool.

    With a CYA of 65ppm, you should be fine to swim under FC of 25ppm.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  15. Back To Top    #15

    Join Date
    Jun 2011
    Location
    Long Beach, CA
    Posts
    2,670

    Re: Cloudy water with chemistry ok?

    When testing the FC use a 10ml sample of water to save on reagents. Multiply each drop by .5.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
    Hayward Aqua Rite T-15 SWCG, Jandy LXi 400k BTU NG heater, 350 sq.ft. of Sun Star solar panels, TF-100 Test Kit, Dolphin s300i Cleaner
    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

  16. Back To Top    #16

    Join Date
    Jul 2012
    Location
    Cleveland, OH
    Posts
    29

    Re: Cloudy water with chemistry ok?

    i am in the same situation but since i shocked my cya rose to about 90 and i am not sure why. it has been steady all summer around the 40 mark. can shocking raise CYA acid? also can this add to the cloudiness of the pool overall?
    27,000 gal. vinyl inground.
    Dyna glas 1.5H pump
    Triton II TR-100 sand filter
    Hayward C-500CF chemical feeder

  17. Back To Top    #17
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Cloudy water with chemistry ok?

    Quote Originally Posted by aviolentworld
    i am in the same situation but since i shocked my cya rose to about 90 and i am not sure why. it has been steady all summer around the 40 mark. can shocking raise CYA acid? also can this add to the cloudiness of the pool overall?
    What did you use to "shock" your pool? Did you follow the Shocking Your Pool process?

    If you used powder (dichlor or trichlor), then that certainly raised your CYA {note: the other powder, cal-hypo, adds calcium CH} ... which is why we recommend always using liquid chlorine.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

  18. Back To Top    #18

    Join Date
    Jul 2012
    Location
    Cleveland, OH
    Posts
    29

    Re: Cloudy water with chemistry ok?

    Quote Originally Posted by jblizzle
    Quote Originally Posted by aviolentworld
    i am in the same situation but since i shocked my cya rose to about 90 and i am not sure why. it has been steady all summer around the 40 mark. can shocking raise CYA acid? also can this add to the cloudiness of the pool overall?
    What did you use to "shock" your pool? Did you follow the Shocking Your Pool process?

    If you used powder (dichlor or trichlor), then that certainly raised your CYA {note: the other powder, cal-hypo, adds calcium CH} ... which is why we recommend always using liquid chlorine.
    when i would shock i use cal-hyp and then run my chlorinator on the 2 mark and that usually keeps my shock level up. i am trying to use my chemicals i already bought for the year before i can do the BBB method so i have never used liquid chlorine.

    the part that confuses me is keeping the FC at shock level. say if i were to shock with liquid chlorine would i run my chlorinator to keep it up? or do i test more frequently and keep using the liquid.
    27,000 gal. vinyl inground.
    Dyna glas 1.5H pump
    Triton II TR-100 sand filter
    Hayward C-500CF chemical feeder

  19. Back To Top    #19
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: Cloudy water with chemistry ok?

    Read the link I provided. You should be testing as often as is required to keep the FC up with liquid chlorine. This is likely hourly when you start the process.

    I assume you drain a lot of water in the winter given your location. If so, using tablets may work fine for you ... if you understand what they are adding to the pool and keep a close eye on your CYA and switch to liquid before it gets too high.

    Your water likely got cloudy in the first place because the tablets were not adding enough FC to compensate for the increasing CYA.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
    If you found TFP helpful and we saved you money ... Become a TFP Supporter!

Posting Permissions

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