High PH
- Thread starter Poolsteve
- Start date
pH rise is largely dependent on how often the jets are running, how much air you're introducing when the jets are running and mostly then your total alkalinity (TA). As Azgirl said:
Fc 2
cc 0
ph >8.2
ta 60
cya 20
- - - Updated - - -
We are in out several times a day. Kids, what are gonna do?
cc 0
ph >8.2
ta 60
cya 20
- - - Updated - - -
We are in out several times a day. Kids, what are gonna do?
TA looks like it's approaching a normal amount for a spa. In mine, I let the TA get to 40-50 and my pH rise slows by quite a bit. Higher than that and the pH rise is very quick, depending on how much I run the jets.
Let the TA live in the 40-50 range... before adding baking soda to bring back to 50-60. You'll have less pH rise, less acid use.
My fill water is 120 TA so I know the pain after a new fill of constant acid additions.
Let the TA live in the 40-50 range... before adding baking soda to bring back to 50-60. You'll have less pH rise, less acid use.
My fill water is 120 TA so I know the pain after a new fill of constant acid additions.
Last edited:
If you still struggle with pH rise at 50 TA, you could add borates to attempt to stabilize pH some, but be sure that TA is 50-60 before adding borates. You can buy pH balanced borate solutions such as Gentle Spa to add borates easily. A cheaper but much more of a hassle method of adding borates is using borax and... acid. Because of the low volume of spas, it's not that expensive to add borates as a pH balanced product. Pools on the other hand, it's much more expensive to add pH balanced borates, so in pools people tend to add borates with the borax/acid method.
I've read about borates and intend to add to pool and spa. I was looking at the boric acid at Dudadiesl.
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