New to this forum and would appreciate input on helping return my water to balance…
Prior to this year, I had a 5200 gal polygroup pool that I’d take down every winter. Never had an issue balancing.
This year, it started off the same after installing a new 7600 gal above ground pool that I intended to leave in place year round.
Until… I learned the hard way that CYA isn’t like every other chemical… it never goes away, pucks make it worse, and more isn’t better.
So…. long story short, I chlorinated with pucks and powders all summer and thought I had the pool nice and balanced, clear, and beautiful, until I recently noticed the CYA going too high. Further testing had it upwards of 200 when doing a ½ reduced sample using my Taylor test kit.
After some extensive reading, and a much better understanding of CYA, I have so far drained and replaced about 24” of water and am seeing a dramatic reduction in CYA…. But my PH is on the low side of the safe window and my Alkalinity is too high.
Current Test Results:
Hardness – 220
TC – 5
FC – 3
PH – 7.2
TA – 180 Taylor test => 180 – (90 x 0.27) = 156 actual
CYA – 90
Should I… A, Continue to drain/re-fill until I get CYA down under 50, and then adjust Alkalinity, or B, Correct Alkalinity and THEN finish correcting CYA?
My thought was to add 29 oz of 14.5% Muriatic Acid (per the calculator) to reduce the alkalinity. This would also theoretically drop PH to 7.0. I would then drain and replace another 24” of water, which would help aerate the pool and hopefully help raise the PH while cutting the CYA in half to 45-50.
Any and all input is appreciated.
Prior to this year, I had a 5200 gal polygroup pool that I’d take down every winter. Never had an issue balancing.
This year, it started off the same after installing a new 7600 gal above ground pool that I intended to leave in place year round.
Until… I learned the hard way that CYA isn’t like every other chemical… it never goes away, pucks make it worse, and more isn’t better.
So…. long story short, I chlorinated with pucks and powders all summer and thought I had the pool nice and balanced, clear, and beautiful, until I recently noticed the CYA going too high. Further testing had it upwards of 200 when doing a ½ reduced sample using my Taylor test kit.
After some extensive reading, and a much better understanding of CYA, I have so far drained and replaced about 24” of water and am seeing a dramatic reduction in CYA…. But my PH is on the low side of the safe window and my Alkalinity is too high.
Current Test Results:
Hardness – 220
TC – 5
FC – 3
PH – 7.2
TA – 180 Taylor test => 180 – (90 x 0.27) = 156 actual
CYA – 90
Should I… A, Continue to drain/re-fill until I get CYA down under 50, and then adjust Alkalinity, or B, Correct Alkalinity and THEN finish correcting CYA?
My thought was to add 29 oz of 14.5% Muriatic Acid (per the calculator) to reduce the alkalinity. This would also theoretically drop PH to 7.0. I would then drain and replace another 24” of water, which would help aerate the pool and hopefully help raise the PH while cutting the CYA in half to 45-50.
Any and all input is appreciated.