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JThanks for the site. It's a wonderful resource. I use Trichlor to bring CYA up to 40-50, then switch to 10% liquid Cl. I am in...
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JHi Kenny and welcome to TFP! :wave: Have you signed up for the APP? In the APP go to "Effects of Adding" and you'll a way to monitor...
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JHow often are you testing CYA? Once monthly is okay if you need to conserve.
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JSimple math. :) rain water with 0 CYA will dilute you by an even %. If you get 15cm of rain in a 150cm average depth pool, it...
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JThanks Texas No, I haven't, but I will now. I have been using the calculator at www.poolcalculator.com/calculator but the CYA section...
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JI've dropped back to about monthly now, but have felt the need to test after very heavy rain. I'm just a newbie at the whole process...
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JYes, after posting I realised that calculating decrease in CYA from dilution would be simple, but still want to be able to calculate...
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JYou can be +/- 10 and it's still close enough for what TFP needs to do. +/- 10 is 3 values on the scale and I can guess your level...
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JOK, cool. In this sense, how much chlorine is too much chlorine? If, for example, I chlorinate to FC=5.7ppm (required for CYA=50 per...
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JIn any sense, chlorine is safe up to and including 40% of the CYA level (SLAM), even when youre off by 10. See You have LOTS of...
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Jjmb replied to the thread Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated..I’ve always used the fill to the line method and just look once. Thank you for your reply. I have used the 50 ppm standard that you...
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Jjmb reacted to AUSpool's post in the thread Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated. with
Like.
To answer your question, no, CYA testing is not easier in the higher end of the range. If anything I think maybe there is more... -
Jjmb replied to the thread Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated..Thank you for your reply. I appreciate the information.
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Jjmb reacted to Bperry's post in the thread Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated. with Like.
Also realize the test tolerance for CYA is easily +\- 10ppm so it’s easy to see a difference of 20ppm. Don’t sweat small differences...
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Jjmb reacted to NaiNot's post in the thread Are CYA readings easier to read at levels greater than 50 than below 50?; plus inquiry effects of adding CYA? CYA raised much more than anticipated. with Like.
Water evaporates, cyanuric acid doesn't. If adding water to replace evaporation, you don't need to add more CYA: as the water...
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