Become a TFP Supporter Pool Math Forum Rules Pool School
Page 1 of 2 12 LastLast
Results 1 to 20 of 32

Thread: Keep adding stabilizer but CYA doesn't go up

  1. Back To Top    #1

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Keep adding stabilizer but CYA doesn't go up

    In the past few months i've probably added atleast 10lbs of stabilizer/conditioner but I always get a reading of around 50-60. I broke down and went to the local pool store and they got a reading of 35 and told me to try completely cleaning out my DE filter. I did that on the 5th and then added 3lbs of stabilizer in 2days... 10 days later I'm still getting a reading of 50-60. I tried the bucket test and i'm not losing any water. I've tried 2 different brands of stabilizer with no change, my only other thought was to try liquid instead of granular. Any thoughts?

  2. Back To Top    #2
    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Location
    Central Minnesota
    Posts
    5,079

    Re: Keep adding stabilizer but CYA doesn't go up

    Welcome to TFP!

    How did you add the stabilizer to the pool?

    It would help us answer your question if we knew how your were testing (what test kit?) and more details about your pool. Add those to your forum signature and you'll get better advice.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

  3. Back To Top    #3

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Re: Keep adding stabilizer but CYA doesn't go up

    I used the sock method and its a Taylor K-2006 test kit... also updated my signature with details on my pool
    13k gal Gunite, Pentair IC40 SWG, Sta-Rite MD60 DE Filter, Pentair Intelliflo Pump, Taylor K-2006 w/ speed stir

  4. Back To Top    #4
    Mod Squad JVTrain's Avatar
    Join Date
    Feb 2014
    Location
    Central Minnesota
    Posts
    5,079

    Re: Keep adding stabilizer but CYA doesn't go up

    Based on the amounts you have added, your CYA should be well over 100 ppm.

    This year, we've seen more reports of people losing CYA at higher rates than is usual. Most of this was with the HTH brand. What brands have you tried to increase your CYA? What were the % cyanuric acid or 1,3,5-triazine-2,4,6-triol on the containers?

    I'm stumped as to why it has not increased like it should have with proper additions. Are you confident in your CYA testing? I would certainly trust your K-2006 results over the pool store, especially for CYA. Posting full test results wouldn't hurt either.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

  5. Back To Top    #5

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Re: Keep adding stabilizer but CYA doesn't go up

    Most of it was Leslie brand which is 100%, I also tried 2lbs of suncoast that I got at Lowes I think and some I bought off amazon that came in clear bags. I'm fairly confident in my testing but I get 50-60, pinch a penny got 35 and someone at leslie was getting like 80. Here are my full test results:

    FC: 12 (I just shocked my pool over the weekend)
    CYA: 55
    TA: 70
    PH: 7.6
    CH: 270
    13k gal Gunite, Pentair IC40 SWG, Sta-Rite MD60 DE Filter, Pentair Intelliflo Pump, Taylor K-2006 w/ speed stir

  6. Back To Top    #6

    Join Date
    Jan 2014
    Location
    Buckeye AZ
    Posts
    807

    Re: Keep adding stabilizer but CYA doesn't go up

    I'm not sure how low pool math goes, but I'd get 5 gallons of tap water, leave it indoors, and add stabilizer to get you to 100. If you have some of the various brands of cya around, do it over again with the other stuff. Somebody here needs to start isolating the brands. You go through the reagent quick though.
    10,500 gal IG, Topaz Pebble, auto-level
    Hayward DE filter, 2HP Ecostar VSP, ProLogic PS-4, GVA actuators
    Cal Pools Wave Force Plus (wall return jets plus 2 floor pop-ups), Venturi Skimmer
    Water sheer, 2 wok pots, bubbler stem on the baja step
    ColorLogic Mutlicolor LED lamp. Taylor 2006+speed stir

  7. Back To Top    #7

    Join Date
    Oct 2007
    Location
    Valrico, FL
    Posts
    536

    Re: Keep adding stabilizer but CYA doesn't go up

    You might have had some bugs that were eating your CYA. Finish the SLAM and then add CYA and test.
    7,500 gal, IG pool, L shape 22' x 15', 1.5 hp pump, cartridge filter, AquaPlus SWG/Controller, Pebble-Tec liner.

  8. Back To Top    #8

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Re: Keep adding stabilizer but CYA doesn't go up

    Unforunately I've had to slam my pool like 3-4 times this summer because my FC has tanked to near 0 so I think there has to be something else going on
    13k gal Gunite, Pentair IC40 SWG, Sta-Rite MD60 DE Filter, Pentair Intelliflo Pump, Taylor K-2006 w/ speed stir

  9. Back To Top    #9
    Agent99's Avatar
    Join Date
    Aug 2008
    Location
    San Jose, CA
    Posts
    688

    Re: Keep adding stabilizer but CYA doesn't go up

    I think you have magic pool water and should market it to folks as "Magic CYA Eating Pool Water". You'll make million$!!!
    ----Chris----
    25k IG/Spa Figure 8, 18x36, Pebble Sheen Blue Granite, Sta-Rite S8M150 Cartridge Filter, Pentair 460805 400k BTU Heater & 011018 IntelliFlo VarSpd
    Liquidator, Fafco Solar Heat, Polaris PB460 Booster Pump w/280 cleaner, Katchaleaf Cover, TF100 Test Kit, FAKE MAIN DRAIN

  10. Back To Top    #10

    Join Date
    Mar 2015
    Location
    Georgia
    Posts
    157

    Re: Keep adding stabilizer but CYA doesn't go up

    Just an ideal, dilute your pool water 50/50 with tap water, test and multiply your result x 2. Maybe you will come up with some other number? Also since your CYA is at least 50 ppm (maybe?) you can use half as much pool water and half as much reagent and still have valid results to save your reagent. Don't do this if you dilute it though.
    16k AG Vinyl Sand Filter

  11. Back To Top    #11

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,077

    Re: Keep adding stabilizer but CYA doesn't go up

    I think there has to be something else going on
    But what would that be? If you put a dose of stabilizer in your pool then you KNOW it's in your pool. So now you wait 4-5 days to test it, right? And you are getting no increase in CYA???? And it happens to you more than once using different brands?

    You apparently had a CYA of 50-60 and have added 10 additional lbs? What was your goal? Those dosages are way excessive for someone who should have been, at most, trying to increase CYA by 20 ppm (about 2 lbs)

    Tell us a bit more as to how long you have been at 50-60 ppm and what your goal was when you added all that CYA?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  12. Back To Top    #12

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Re: Keep adding stabilizer but CYA doesn't go up

    Yes the goal is to increase it by about 20ppm so I've been adding about 2lbs at a time then waiting a week to test. I've been getting a reading of 50-60 for about 4-6weeks. I thought about going back to the pool store that got a reading of 35 to see what they get now.
    13k gal Gunite, Pentair IC40 SWG, Sta-Rite MD60 DE Filter, Pentair Intelliflo Pump, Taylor K-2006 w/ speed stir

  13. Back To Top    #13

    TFP Guide
    PAGirl's Avatar
    Join Date
    Jun 2012
    Location
    Central PA
    Posts
    2,388

    Re: Keep adding stabilizer but CYA doesn't go up

    What were the conditions that warranted the SLAMs?
    26' X 52" Intex Ultra Frame. Intex Sand Filter
    26' X 52 Intex Ultra Frame Install
    You can lead a horse to (clear) water, but you can't force him to swim in it!

  14. Back To Top    #14

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Re: Keep adding stabilizer but CYA doesn't go up

    I had an IC-20 and even at 100% my FC was tanking to 0... maybe from all the rain this year in FL. I bought an IC40 a month ago and the unit died after about a week while I was out of town which caused it to go to 0 again. The new unit would blow a fuse a soon as you plugged it in to the power center. Pentair replaced it since it was brand new and under warranty, they thought maybe it had a short.
    13k gal Gunite, Pentair IC40 SWG, Sta-Rite MD60 DE Filter, Pentair Intelliflo Pump, Taylor K-2006 w/ speed stir

  15. Back To Top    #15
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: Keep adding stabilizer but CYA doesn't go up

    By chance do you have an auto-fill and might you have a leak in your pool so that your CYA is simply leaking out and getting diluted by fresh water?
    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~

  16. Back To Top    #16

    Join Date
    Jul 2014
    Location
    Riverview, FL
    Posts
    10

    Re: Keep adding stabilizer but CYA doesn't go up

    No autofill and i did the bucket test to check for a leak
    13k gal Gunite, Pentair IC40 SWG, Sta-Rite MD60 DE Filter, Pentair Intelliflo Pump, Taylor K-2006 w/ speed stir

  17. Back To Top    #17

    Join Date
    Sep 2013
    Location
    Connecticut
    Posts
    728

    Re: Keep adding stabilizer but CYA doesn't go up

    Did you get new CYA reagent, and, if so, when?

    I'm noting that you have the K-2006, which only comes with enough reagent for about 6 tests, and your story implies that you've run more than 6 CYA tests by now... That makes me wonder if you've had to get a refill, and whether you might have a bad batch. There was a recent thread where someone described getting bad CYA readings with newly purchased reagent.
    18' x 48" ring top pool (Summer Escapes); 5500 gallons; set up June - October, stored during winter; Intex 2500 gph pump (B size cartridge filter) Hayward 21" sand filter + 1.5 hp single speed Powerflo Matrix pump (upgrade October 2016) *** K-2006 test kit, refills from tftestkits

  18. Back To Top    #18

    Join Date
    Jan 2014
    Location
    Buckeye AZ
    Posts
    807

    Re: Keep adding stabilizer but CYA doesn't go up

    For the money spent so far, you could get some liquid cya. That should show up on the test as soon as it's mixed

    Edit: Once you eliminate testing errors.
    10,500 gal IG, Topaz Pebble, auto-level
    Hayward DE filter, 2HP Ecostar VSP, ProLogic PS-4, GVA actuators
    Cal Pools Wave Force Plus (wall return jets plus 2 floor pop-ups), Venturi Skimmer
    Water sheer, 2 wok pots, bubbler stem on the baja step
    ColorLogic Mutlicolor LED lamp. Taylor 2006+speed stir

  19. Back To Top    #19

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,077

    Re: Keep adding stabilizer but CYA doesn't go up

    I thought about going back to the pool store that got a reading of 35 to see what they get now.
    OMG, please do not do that. There is nothing but confusion that will come from that. That said, I am pretty confused on how this could be happening anyway. Sorry I can't be of more help.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  20. Back To Top    #20

    Join Date
    Aug 2014
    Location
    Shallotte, NC
    Posts
    693

    Re: Keep adding stabilizer but CYA doesn't go up

    What is your Combined Chlorine?

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
  •