PH rising rate

FloridaPoolNewbie

Bronze Supporter
May 5, 2021
110
Florida
What is the normal rate at which PH rises? I'm noticing mine will sometimes go up a couple of points in 2-3 days going from 7.5 to 7.7. My TA is 80. Recent test results below.

FC-10
PH- 7.7
TA-80
CYA-80
CH-250
Salt-3500
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,704
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Depends on your pool water chemistry, how much aeration the pool water gets (water features, wind, swimming, rain, etc) and what the TA and pH of your fill water is.

Let your pH rise until it is at least 8 before adding acid to lower it to 7.6.
 
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FloridaPoolNewbie

Bronze Supporter
May 5, 2021
110
Florida
Depends on your pool water chemistry, how much aeration the pool water gets (water features, wind, swimming, rain, etc) and what the TA and pH of your fill water is.

Let your pH rise until it is at least 8 before adding acid to lower it to 7.6.
Are you against dropping it to 7.2 to minimize the time you have to add acid?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,704
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
You will find it will not be much different than lowering it to 7.6.
Unless you are fighting a rising TA due to fill water. If you are, then lowering to 7.2 is good as you will consume more TA.
 
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