High alkalinity low ph

AZ-83

Member
Jul 7, 2015
9
Waddell
Hello all. Been a while since I had this issue (actually helping out a buddy). High alkalinity (130) and lowish ph 7.3. Concerned that adding acid will kick ph too low. Can you guys give me a refresher? Thanks in advance.
 

Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2014
30,375
Texas, San Antonio/Marion, South-Central Area
Pool Size
17888
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45 Plus
If your friend really needs to lower the pH, then you'll have to aerate to get the pH up first. But with a TA of 130, I would expect the pH to rise rather quickly on its own. If the pH isn't rising quickly, I would be patient and not force anything. Just wait until the pH climbs (eventually it will) then hit the pH once it gets to about 8.0 with enough acid to bring it down to about 7.2.
 
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AZ-83

Member
Jul 7, 2015
9
Waddell
Do you happen to know how quickly aeration impact the ph levels? You think a few days? Its been steady at 7.3 the last couple days. As far as aeration goes, he has a couple of deck jets and a waterfall. Just turn those on while the pump is running to increase ph you think? Thanks in advance. Really appreciate the feedback.
 

Prickly

Well-known member
Jul 8, 2020
127
Kelowna
Pool Size
31000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-9)
Hello all. Been a while since I had this issue (actually helping out a buddy). High alkalinity (130) and lowish ph 7.3. Concerned that adding acid will kick ph too low. Can you guys give me a refresher? Thanks in advance.
I dont see the need to adjust either of those numbers. Why not leave it as is?
 

Kjp300

Gold Supporter
Jul 18, 2018
165
Canfield ohio
I agree. If the PH stays steady I wouldn’t worry about it. If the PH rises with the high TA (as it should) adding acid to bring the PH down will eventually lower your TA.