TA higher after borates added


Well-known member
Oct 20, 2020
North Virgina
I opened pool at 100 TA, it has lowered to 80 since due to acid. I added borates 50 ppm week or two ago, now I am reading 100 ppm again since last test before added borates.

Didn’t expect TA to rise at all. Have a swig so normally only thing I am adding is MA to control pH, which is main reason I added borates. I keep my CYA at 50.


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Borates add alkalinity, but not 20 ppm for 50 ppm borates.
Testing variations is most of it.

It s discussed on the pH/TA video on TFP TV.
Last edited:
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