I got my test kit and as described in my "first test" post, I struggled with the CYA reading. By the time I couldn't see the black dot, my reading was around 40 going to 30. The pool store indicated my reading was mid 50's. So, I did some research. Since this is a new pool, I realized that I'm the only one who put cyanuric acid in the pool - 8 pounds on 7/2/2020. My thinking was that I could take the Pool Math and figure out what my CYA is based on 8 pounds being added. That lead to another issue.
I've been using 21,000 gal. as my pool size based on length x width x average depth. But, when I put the 8 pounds into the calculator, the number was too low. Then I did some research and the manufacturer has the pool capacity at 15,250. This makes sense because the pool has a large tanning ledge with steps reaching out into the pool. So I feel comfortable using that number from now on.
Back to the CYA, according to Pool Math, if I start from zero and add 8 pounds to a 15,250 gal pool, the CYA should be 63. A lot closer to the pool store number than my "look for the dot" test. My last pool store reading for CYA was 56. So, what I figured I'd do is run the dot test up to around 60 and look at it and use that as my benchmark going forward. I think I'll also go to the pool store from time to time and compare figures. I understand that is a no-no, but actually, the pool store readings and my T-100 tests are pretty consistent. The main thing is what I do with the information and that's where TFP comes in.
FWIW, today's readings:
PH - 7.6
FC - 4.5
CC - 0
CH - 200
TA - 90
I'll be doing the OCLT tonight. Then we'll see what adjustments need to be made, if any.
Thanks.
I've been using 21,000 gal. as my pool size based on length x width x average depth. But, when I put the 8 pounds into the calculator, the number was too low. Then I did some research and the manufacturer has the pool capacity at 15,250. This makes sense because the pool has a large tanning ledge with steps reaching out into the pool. So I feel comfortable using that number from now on.
Back to the CYA, according to Pool Math, if I start from zero and add 8 pounds to a 15,250 gal pool, the CYA should be 63. A lot closer to the pool store number than my "look for the dot" test. My last pool store reading for CYA was 56. So, what I figured I'd do is run the dot test up to around 60 and look at it and use that as my benchmark going forward. I think I'll also go to the pool store from time to time and compare figures. I understand that is a no-no, but actually, the pool store readings and my T-100 tests are pretty consistent. The main thing is what I do with the information and that's where TFP comes in.
FWIW, today's readings:
PH - 7.6
FC - 4.5
CC - 0
CH - 200
TA - 90
I'll be doing the OCLT tonight. Then we'll see what adjustments need to be made, if any.
Thanks.