Hi all. I seem to be frequently adding acid to keep pH in a reasonable range. It will rise to 8.2 within a few days of bringing it down to 7.5-7.8.
This morning's test results after adding 18 oz of acid yesterday afternoon:
FC 7.0
CC 0
pH 7.5
TA 70
CH 400
CYA 60
The table below shows abbreviated test results and acid added as a result. I use PoolMath to determine how much acid to add for a target of 7.5.
I mostly have the water fountain turned-off to keep aeration from increasing the pH.
Is this just normal for my pool or is something else affecting pH?
Thanks,
Steve
This morning's test results after adding 18 oz of acid yesterday afternoon:
FC 7.0
CC 0
pH 7.5
TA 70
CH 400
CYA 60
The table below shows abbreviated test results and acid added as a result. I use PoolMath to determine how much acid to add for a target of 7.5.
Date | TA | pH | Muriatic Acid Oz |
09/30/2016 | 80 | 8 | 18 |
10/1/2016 | 100 | 7.8 | 11 |
10/04/2016 | 80 | 8.2 | 18 |
10/05/2016 | 80 | 7.8 | 9 |
10/08/2016 | 80 | 8 | 18 |
10/11/2016 | 90 | 7.8 | 9 |
10/14/2016 | 90 | 8.2 | 18 |
I mostly have the water fountain turned-off to keep aeration from increasing the pH.
Is this just normal for my pool or is something else affecting pH?
Thanks,
Steve