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

Thread: it seems to me like there are a ton of issues with CYA

  1. Back To Top    #1

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    it seems to me like there are a ton of issues with CYA

    I too am having problems getting enough CYA in my pool this year - I have added way more than in past years. I haven't been around these forums for too long but it seems to me like there are a ton of issues with CYA - has that been the case every year? Or is there something environmental going on? Or is it like Woodstock "The brown acid is bad, man!".
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: it seems to me like there are a ton of issues with CYA

    Please be more specific. Are you saying you are having to add CYA to maintain a specific level? Help us understand better.

    While I don't think there is anyone on the forum that is employed by a CYA manufacturer, we sure like specifics so we can identify any trends that might be worth noting.

    TFPC is all about repeatability in testing, accuracy in testing and an understanding of what the test results mean.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    May 2010
    Location
    SW Georgia
    Posts
    298

    Re: it seems to me like there are a ton of issues with CYA

    Last year I bought 4lbs. from a pool store and put the whole bucket in my pool and got zero results. I waited the recommended time to (two weeks) to test and still nothing. I waited another two week and it actually went down. I went to another pool store chain and bought a bag of CYA an put it in the pool and two weeks later my CYA was up 10 points. This was 6 weeks after the initial batch. Some don't agree but I think I got hold of some bad CYA maybe you did as well. Since then I have only bought the bag CYA and have seen upward movement every time.
    35K IG Vinyl 20 x 40 self built pool, Hayward Pro Series High-Rate Sand Filter 31" 98gal/min, Hayward TriStar 1.85hp, Hayward 400btu heater, BBB method w/Hypo, Jazz light w/matching fiber optic rope lighting around coping w/syncronized color wheels. Concrete Paver deck.

  4. Back To Top    #4

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    Re: it seems to me like there are a ton of issues with CYA

    My data point is, unfortunately, not very exact since I wasn't expecting any problems. My pool opened in 2007 or 8 - I can't remember the exact year. I have a Jandy Aquapure SWCG and after my pool was opened each year I would generally just have to add a couple of bags of salt and a few pounds of CYA. Then, assuming no issues with the SWCG, I had very little to do all summer - I would use test strips once a week or so and occasionally take a sample to the pool shop. (A couple of years ago I replaced the salt cell which seems to correspond to a 5 year life span)

    This year I did what I described above but the pool shop said no CYA. So I added another 1.75kg bucket of CYA, still nothing so then another 800g or CYA tabs (blue pucks) and bought myself a Taylor test kit, which I got late last week. I still get no discernible CYA - my wife took a sample to the pool shop and they also said still no CYA. So last Friday/Saturday I added another 1.75kg of CYA. In a few days I will test to see if I am making any progress. But I have added a ton more of CYA than I have ever had to add in the past and the testing still shows no CYA. I am now loggin my tests and chemical additions in a spreadsheet.

    My SWCG is on the fritz as well, but that is a separate issue.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

  5. Back To Top    #5

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: it seems to me like there are a ton of issues with CYA

    But I have added a ton more of CYA than I have ever had to add in the past and the testing still shows no CYA.
    The most logical thing I can draw from that is inaccurate testing which pool stores and strips are well known for.

    I would suggest not adding more CYA until you find out what happened to what you have already put in. It doesn't just go away. I think you will find the error in either the poor testing or, less likely but still possible, bogus CYA that someone is selling you.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  6. Back To Top    #6

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    Re: it seems to me like there are a ton of issues with CYA

    So I put the 1.75 kg of CYA in two socks hanging over the water returns. It was dissolved by Saturday morning. When would you suggest that I retest for CYA? This Saturday after a week to dissolve?

    I don't want to test too often as my Taylor kit is only good for about 6 tests and I have already used one. I guess that means I should by some more reagents - but they really should put more of the CYA reagents in the kits, especially in the Canadian kits that sell for $130+
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

  7. Back To Top    #7
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: it seems to me like there are a ton of issues with CYA

    This is one of the reasons that we recommend the TF-100 the quantity of reagents makes more sense ... although I know that does not help out neighbors to the north.

    Test it again Saturday. What is the volume of your pool (add it to your signature)?
    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!

  8. Back To Top    #8

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    Re: it seems to me like there are a ton of issues with CYA

    The volume is roughly 26,000 US gallons or 100 kL.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

  9. Back To Top    #9
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: it seems to me like there are a ton of issues with CYA

    So you expect that stabilizer to add about 18ppm of CYA?

    I have to agree with Dave that you are kind of acting blindly if you are trusting test strips and/or pool store testing for you CYA results.

    You would be well served to invest in one of the Recommended Test Kits and start trusting your own numbers.
    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!

  10. Back To Top    #10

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    Re: it seems to me like there are a ton of issues with CYA

    I have bought a Taylor kit and my initial test showed 0 CYA, or at least less than 30. Perhaps I have always been running blind and I was always low on CYA but it never caused me issues in the past.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

  11. Back To Top    #11
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: it seems to me like there are a ton of issues with CYA

    OK, was the test cloudy at all or crystal clear?
    I would test on Saturday and see where you are at, although if you were very low, then you still may be too low to get a good reading.

    Ideally you want to get up closer to 70ppm eventually.
    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!

  12. Back To Top    #12

    Join Date
    May 2012
    Location
    Toronto, ON
    Posts
    456

    Re: it seems to me like there are a ton of issues with CYA

    The test water was still very clear - not quite crystal but it wasn't close to obscuring the black dot even at the top reading level.
    Vinyl 18'x36' in-ground 100,000 L, Jandy Aquapure 1400 SWCG, Jandy Lite2 heater, StaRite System3 filter, Evac tube solar heating panels

  13. Back To Top    #13

    Join Date
    May 2010
    Location
    Louisiana
    Posts
    127

    Re: it seems to me like there are a ton of issues with CYA

    My CYA is getting hard to get the numbers up also this year. So far i have added 3 gallons of the liquid and 10lbs. of the granular. At a 60 now with all of that added in a 17,200 gallon pool.
    27' Radiant Metric, 17,100 gallons
    Pentair Dynamo 1.5hp 220v
    Circupool RJ45, Sand Filter, Borates
    Dolphin DX6 Robotic cleaner
    TF 100 Kit

  14. Back To Top    #14
    Isaac-1's Avatar
    Join Date
    May 2010
    Location
    SW Louisiana
    Posts
    6,711

    Re: it seems to me like there are a ton of issues with CYA

    Are you buying all your CYA from the same source? Most dry CYA is 99%+ strength, but some is diluted to only 50%, and I think I recall a situation a few years back with bogus CYA on the market that tested out at 0%.
    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~

  15. Back To Top    #15

    Join Date
    Jul 2012
    Location
    Georgia
    Posts
    77

    Re: it seems to me like there are a ton of issues with CYA

    I too add and add CYA, and the Taylor kit always says "30 ppm"...I really despise this test. Can't there be a color-change style test, rather than this vague "obscures the black dot" test?

    Attached are photos of this test at 30ppm, 40ppm, and 70ppm levels on the tube. At the desired 70ppm, that black dot just stares you in the face, I can never hope to achieve 70ppm, it seems.

    Is there an easier-to-read test? BTW: The evil pool store test says I am fine at 70ppm, but I just don't trust them, as they give poor chemical advice in general.
    Attached Images Attached Images
    19k gal, STS1072R A.O. Smith C-Face Motor .75HP Full-Rated 2-Speed, Hayward Sand Filter

  16. Back To Top    #16
    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Location
    Tucson, AZ
    Posts
    37,389

    Re: it seems to me like there are a ton of issues with CYA

    I am not sure why you think the test is the problem. Looks like less than 30ppm to me as I see the dot still.

    Unless you have added enough that it should be much higher.
    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!

  17. Back To Top    #17
    nedchavez's Avatar
    Join Date
    Jun 2012
    Location
    Grand Rapids, Michigan
    Posts
    111

    Re: it seems to me like there are a ton of issues with CYA

    Wayner, do you have an auto fill option on your pool? If you have a leak and the auto fill was adding a lot of make up, CYA would constantly drop.
    16' x 32' IG vinyl liner w/ hopper bottom (12,500 gal), Single-speed 1 HP Sta-Rite pump, and 300# Cristal-Flo sand filter, TF-100 test kit

  18. Back To Top    #18

    Join Date
    Jul 2012
    Location
    Georgia
    Posts
    77

    Re: it seems to me like there are a ton of issues with CYA

    Quote Originally Posted by jblizzle View Post
    I am not sure why you think the test is the problem. Looks like less than 30ppm to me as I see the dot still.

    Unless you have added enough that it should be much higher.
    I was using the liquid version, I suspect it does not really work.

    Now I have to find a sock that holds 70oz of dry stabilizer.
    19k gal, STS1072R A.O. Smith C-Face Motor .75HP Full-Rated 2-Speed, Hayward Sand Filter

  19. Back To Top    #19
    R.J.'s Avatar
    Join Date
    Jul 2012
    Location
    Minneapolis
    Posts
    82

    Re: it seems to me like there are a ton of issues with CYA

    Or use more than one sock
    18 x 48 Intex Ultra Frame
    2500 gph cartridge filter
    Intex SWG

  20. Back To Top    #20
    MBG75's Avatar
    Join Date
    Jun 2013
    Location
    Long Island
    Posts
    184

    it seems to me like there are a ton of issues with CYA

    I added a bottle of liquid stabilizer from Leslie's this season with no change.
    Added 4lbs of granular and it went up nicely.
    25k IG vinyl SWG Haywood 4830de 1.5hp TF-100

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
  •