- May 4, 2011
- 634
I've been thinking about this and it appears I was looking at the CYA test wrong. After reviewing Taylor's website and seeing the image I think my actual CYA level is 40 when I was treating it as 60. Maybe I was afraid I would be wrong and made sure the dot was a little too visible, thus giving me a higher reading.
Either way I add a little buffer (treating it as +5 ppm cya). When I thought it was 60 I was targeting 7.5 ppm FC and now that I think it's 40, I will target 5.5 (which would be 45ppm cya).
So, here is what I want to compare (please post):
FC you're targeting .... CYA level .... ppm FC loss (sunny day) .... avg % daily loss
------------------------------------------
7.5 .... 60 (probably 40) .... 5 .... 40%
My daily loss was averaging 5ppm/day (on a sunny day) which I would add to the 7.5 giving me 12.5, (5ppm loss/day)/(12.5 FC after adding 5ppm to account for tomorrow's loss) = 0.4, 40%
Tomorrow is predicted to be sunny, so I should be able to take my solar cover off and determine my usage at the proper target FC soon.
I'm interested to see what everyone's numbers are.
Either way I add a little buffer (treating it as +5 ppm cya). When I thought it was 60 I was targeting 7.5 ppm FC and now that I think it's 40, I will target 5.5 (which would be 45ppm cya).
So, here is what I want to compare (please post):
FC you're targeting .... CYA level .... ppm FC loss (sunny day) .... avg % daily loss
------------------------------------------
7.5 .... 60 (probably 40) .... 5 .... 40%
My daily loss was averaging 5ppm/day (on a sunny day) which I would add to the 7.5 giving me 12.5, (5ppm loss/day)/(12.5 FC after adding 5ppm to account for tomorrow's loss) = 0.4, 40%
Tomorrow is predicted to be sunny, so I should be able to take my solar cover off and determine my usage at the proper target FC soon.
I'm interested to see what everyone's numbers are.