So we are new home and first time pool owners. The pool was resurfaced with Pebbletec, around February or March we believe, by the prior owner.
The pH is rising a bit on its own, which seems to be normal? The alkalinity is high, too. For details, pH was just a bit above 7.8 and alkalinity was at 170, so I added in a gallon of muriatic acid and brought it down to roughly 7.2. However, when I tested today, the Ph was back at 7.8 (it's been creeping up a bit daily as I've been testing), and alkalinity was somehow at 190 (?). I have not been aerating to bring pH back up because, well, it's rising on its own (due to the new plaster/Pebbletec, I believe).
I'd expected alkalinity to go down...I am new to testing so perhaps this is a case of user error. Here are today's numbers.
I have a few questions:
1) is there a target alkalinity I ought to shoot for or just let it be?
2) should I aerate to bring pH back up after adding acid?
3) with a new surface, should I aim for a particular pH or just keep knocking it down to 7.2 and see if it keeps creeping back up?
The pH is rising a bit on its own, which seems to be normal? The alkalinity is high, too. For details, pH was just a bit above 7.8 and alkalinity was at 170, so I added in a gallon of muriatic acid and brought it down to roughly 7.2. However, when I tested today, the Ph was back at 7.8 (it's been creeping up a bit daily as I've been testing), and alkalinity was somehow at 190 (?). I have not been aerating to bring pH back up because, well, it's rising on its own (due to the new plaster/Pebbletec, I believe).
I'd expected alkalinity to go down...I am new to testing so perhaps this is a case of user error. Here are today's numbers.
I have a few questions:
1) is there a target alkalinity I ought to shoot for or just let it be?
2) should I aerate to bring pH back up after adding acid?
3) with a new surface, should I aim for a particular pH or just keep knocking it down to 7.2 and see if it keeps creeping back up?
PH | 7.8 |
FC | 3.5 |
CC | 0.5 (?) |
TC | 4 |
CH | 325 |
TA | 190 |
CYA | 55 |