cya

  1. T

    Chlorine cost analysis

    Hi, I'd be curious to hear about everyone's experience with chlorination strategies to figure out what would work best for me. For many years, I've been using trichlor pucks along with calhypo for shock with mixed success. It's been pretty painful to deal with the high levels of CYA and the...
  2. matasoj

    About time to close, but CYA is about 110-115 due to the crappy chemicals from the pool store

    I found troublefreepool and the pool math app after I had already gone a month into maintaining our new 27' x 54" AGP using the chemicals purchased from the company that sold us the pool. Even just a month in, the CYA had climbed to above 60. I was still trying to figure out how everything for...
  3. rmozer

    CYA too high

    My CYA level (>90) appears to be interfering with my algae control. I understand that to reduce my CYA level, I have to pump down my pool and add fresh water. Can someone provide guidance on how much old water to remove and replace? My pool is 16 x 32 and has about 21,000 gallons. Thanks Bob
  4. T

    CYA amount in newly filled pool

    Hi friends, Just got a new liner and filled my 25,000 gallon pool I have a test kit and find that FC, TC, pH, are at the recommended level. But I have not added CYA. That level looks like 0 to me, as the black dot does not change. The Pool Math calculator seems to tell me to add 16 lbs. to my...
  5. sadohert

    Interpreting my CYA Level - How much does that black dot really disappear?

    TFP Friends - I think the key question I have here is whether my black dot has disappeared (see picture below)... I have other sub-questions I would love to hear feedback on. If that dot has disappeared, then I'd say my CYA is around 40, which I believe is too low and might explain how much...
  6. N

    Water Treatment - What Now?

    First, I want to say that we are first time pool owners of a 10k gallon, vinyl, filter cartridge using, chlorine eating, in ground pool, which came with our home purchase last fall. I've added what I know in the about me portion. If I didn't do something correctly just let me know. Based upon...
  7. AquaB

    Is it possible to run weekly cleaning services with BBB method?

    I have followed instruction from TFP in past two month and the result is amazing. Water is sparking clean with no need for shock for more than a month. I had to drain water once to lower CYA to around 60, but the problem was a left-over from previous use of dichlor and trichlor. I am...
  8. J

    Can I use Unstabilized Chlorine tabs one week then Stabilized Chlorine tabs the next week ?

    I have an outdoor above ground pool. I have been using stabilized chlorine 3" tablets for several years now. This year the CYA level got too high. I had to drain 1/2 my pool. I switched to unstabilized chlorine tabs. My CYA levels are now at a proper level. I have been warned about the...
  9. M

    Accurate CYA reading

    New to pools. Depending on the store, when I take my water in to get it tested I have gotten readings of 60 to 100 for CYA. I am using bleach, borax, baking soda, muratic acid and some calcium hardener as chemicals. Are their tests just wrong or why would it go up if I'm not using any tri/di...
  10. AquaB

    Bulk water delivery in North Dallas area

    It's first time I post a question here on TFP. Really love how informative the forum is. I need help on finding a bulk water delivery service in North Dallas area around Plano (75025) to refill my pool with about 13000 ga water. My backyard faucet can only supply 300 gallon per hour and it...
  11. N

    Needing ~1 gallon of bleach/day??

    I had to drain a bunch of my pool because of CYA of ~110 or so. Since that time I have been judicious with my use of trichlor and have instead been using bleach to sanitize. For my 14500 gallon pool I’ve been adding close to a gallon of bleach per day and that seems like a lot. Could there be...
  12. R

    CYA Insight, question

    I seem to have an unusual situation with my CYA. At the beginning of this season I used tabs to get my CYA to 50, them switched to liquid chlorine. Few weeks later I checked my CYA and it had dropped to 30, added several more tabs, back to 40, few weeks later dropped again to about 30. Since...
  13. F

    CYA help!

    Starting this year, I took over taking care of the pool myself from a pool service. I’ve done a lot of reading and research, and testing! Unfortunately, in the beginning, I was using Clorox shock and pucks, and test strips. Since then, I’ve run into this group, and have switched to purer...
  14. B

    Trouble balancing water

    Hello, I have a 17k gallon pool plaster cartridge filters and this year I seem to be having alot of issues with balancing the water: My current test results are : FC: 2.47 TC: 2.8 Ph:7.9 Alk: 77 CYA: 119 Calcium: 202 Iron/Copper : .01 Phosphates: 1691 Pool water is crystal clear with occasional...
  15. K

    Free Chlorine Issue : Water Chemistry

    Hello, I have a relatively new saltwater pool (11/1/2019) that I can't seem to get back into balance. As a result of allowing my CYA levels to drop to zero, my FC levels quickly followed (Florida sun). In an attempt to get my CYA/FC levels up rapidly, via stabilized chlorine tablets &...
  16. Sotex

    Contemplating getting a Pentair Intellichlor

    I'm wanting to have a better understanding of how SWGs work. My understanding is that they kind of work like a puck system (minus the increase in CYA and having to buy pucks - you buy salt instead). Is that close to accurate? Here is my current setup (see images) - I have a full Pentair system...
  17. K

    CYA going high and high

    5 days back I thought to test water from pool supplies store, so I went with water sample and came to know that CYA is 125 out of my 28000 gal pool. So person suggested me to drain 1ft of water, so I drained and refill 1.5 feet and then went back for testing. This time FC was low and CYA came...
  18. C

    First TF-100 Test Results! Questions/advice...

    I just got my test kit and did the full battery (I think). Results: FC: 1.5 CC: .5 TA: 150 Ph: 8 CH: 1 CYA: 40 Pool: ~30k gallons, vinyl. I used pool math to calculate bleach addition, and addition of low n slo I still had. I have read the ABC’s of Pool Chemistry and most of the articles in...
  19. P

    Add CYA first or Vacuum/Chlorine?

    Hi Guys, I need to SLAM my pool as it is pretty dark and gross looking. PH - 7.4 TA - 80 CYA - Below 30 Now I know CYA needs to be at least at 30 before I SLAM but currently my jets will start to slow due to the algae in the pool. What I'm wondering is should I just start adding chlorine and...
  20. W

    CYA off the chart high

    Pool test results from this morning: Free Chlorine: 28 pH: 7.0 Total Alkalinity: 80 Calcium Hardness: 430 CYA: 200 Water Temp: 85° (Taylor K-2006 test kit) Pool specs: Orlando, Florida 10,000 gal in-ground Plaster Chlorine Variable Speed Pump with pressure gauge My pool calculator reports the...
  21. R

    Stinging noses, headaches, smell

    FC: 5.5 CC: 0 pH: 7.4 TA: 110 CH: 150 CYA: ~26 Water temp: 80 F 10K gal AG TF-100 kit Hi everyone and welcome back to pool season in the Northeast! Opened up about a week ago, passed the OCLT on 5/21 and then had a crazy heat wave the past 2 or 3 days so the kids have spent considerable...
  22. L

    Working on opening salt pool - need some advice

    Hi folks! Just recently filled a Saltwater pool and am working on getting it leveled out. Got a TF-100 kit. We filled the pool on 5/18, added 100lbs of salt on 5/19, then after the salt dissolved after two days we put our pump on it’s “BOOST” mode and let it do its thing. Initial test showed...
  23. L

    Getting started with a SWG

    Hi everyone! I just set up an Intex 15' diameter, 4' tall pool and filled it with water. We added 100lbs of salt as per the pump's instruction manual (Intex Krystal Clear 1500 GPH Sand Filter Pump & Saltwater System) and have gotten it to dissolve. I have a couple of questions: 1) Should I add...
  24. P

    shocking the pool

    Hi, I am a new pool owner. I just bought a house with a pool so this pool is well established. I have tested water and pH is 7.9, alkalinity 80 but CYA is 144 and high calcium. I use trichlor tablets (2-3/week, 9000 gal pool). I was told that I should use CYA, Ca2+ free shock chemistry, which...
  25. P

    CYA consumed immediately?

    Hey all. 21K pool, had CYA at 30 for a few weeks as I was SLAMing. Once finished, I added 5 lbs of dry stabilizer which said on the package that it was 99% or so CYA. Added it in a sock by a return jet and massaged the sock so it would dissolve quickly. Tested a couple days later expecting...
  26. L

    Calcium Hardness Question

    Just had my pool resurfaced. For the first two weeks, I relied on Leslie's and another local pool store for pool tests until I got my TF-100. Did my first test today. I've got a SWG (Autopilot) FC=17 CC=2 PH=7.5 CH=600 TA=80 CYA=30 The Leslie's results were very, very close to the TF-100...
  27. D

    CYA Help

    Newbie here to the Diclor-Bleach Method. Can you all make sure I have my head wrapped around this correctly. I believe I am ready to switch to bleach. I have trouble accurately reading the CYA test (TF-100) so I have calculated based on the amount of diclor I have added. So far, I have added...
  28. ady5

    CYA

    Is there any way to test CYA levels using dry cyanuric acid? Thanks, Ady
  29. ady5

    CYA Levels and Cal Hypo

    Hello, My CYA levels have crept up over 100. I think it is because I have been using sodium dichloro-s triazinetrione granular shock. I only have a skimmer, no main drain. I've replaced about 30% of the water, which is all I can do at a time through the skimmer. It came down a bit and has now...
  30. F

    Validation of my first test (K-2006)

    Hello, all. After years of paying a pool guy $100/mo my sister has asked me to take over (the maintenance, not the paying). I've replaced the booster pump and the majority of the parts in her Pentair CC200 and everything still works so I got that going for me, which is good. Bought a K-2006...