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Since my CH was at 900 and my CYA had spiked I decided to do a water exchange. Here are my readings before and after:
I try to follow the Pool Math table suggestions. After reading the questions and answers above, I wasn't sure if I should continue the exchange to get the CH down further. I will have to add salt. My system recommends 4000ppm. Given my fill water readings, I'm not sure if trying to stay within the pool math suggestions is realistic.
As always, any and all help is greatly appreciated.
Since my CH was at 900 and my CYA had spiked I decided to do a water exchange. Here are my readings before and after:
Water Temp 62 degrees F | BEFORE | AFTER | FILL WATER (TAP) |
PH | 7.9 | 7.9 | 7.9 |
FC | 7.0 | 4.0 | 0.5 |
CC | 0 | 0 | 0 |
TC | 7.0 | 4.0 | 0.5 |
TA | 70 | 100 | 100 |
CYA | 100 | <30 (the black dot at the bottom of the view tube finally disappeared after passing the 30 level) | 0 |
CH | 900 | 650 | 300 |
Salt | 5600 | 2600 | <200 |
CSI | 0.03 | 0.43 (I used 25 as the CYA level) | 0.6 (I used 100 for the salt level) |
I try to follow the Pool Math table suggestions. After reading the questions and answers above, I wasn't sure if I should continue the exchange to get the CH down further. I will have to add salt. My system recommends 4000ppm. Given my fill water readings, I'm not sure if trying to stay within the pool math suggestions is realistic.
As always, any and all help is greatly appreciated.
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