A week ago my TA was a bit high at 120 & PH was 7.7. I wanted to lower TA so i added the appropriate MA & TA was then 110 & PH 7. I aerated for a week & PH raised to about 7.2 (didn't increase much). I then added MA tonight according to calculator for PH to 7.0 , but will not test TA again till morning. My issue is the TA should be lower again but it is taking such a long time to get PH to rise with this aeration. Would adding borax raise the PH up but not raise TA up much or will borax just raise TA up also?
Lowering TA and raising PH
- Thread starter Lizzieann
- Start date
Not in a hurry necessarily, just trying to get to my target numbers. I want Ph where it should be for swimming purposes
Fire off the waterfall. That ought to drive pH up in a hurry.
And then just maintain pH using the TA reading to help calculate the acid dose. TA will slowly come down on its own.
And then just maintain pH using the TA reading to help calculate the acid dose. TA will slowly come down on its own.
Ok, so basically you are saying i don't need to worry about TA being a little high (100-120) if my PH levels are staying around 7.5. & 7.7 ?
When I need to lower my TA I tend to lower my ph to 7.2, still swimmable, and when it climbs up to 7.7, dose again to bring it back down until I reach desired TA. It takes some time, but it's not something that has to be done quickly. When your TA is in check, your ph won't fluctuate as much.
Yep.Lizzieann said:
High TA is only a real problem if you have high CH as well, because the combination drives the Calcium Saturation Index high, which leads to scaling.
High TA will tend to cause pH to climb rapidly. In which case you just lower it with acid. It's exactly
the same process you're doing with the aeration, just not at a forced rate.
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