Low alkalinity bad for plaster?

tomfrh

0
Jan 30, 2018
567
Australia
Traditional recommended levels for Total Alkalinity are ~80-120. Trouble Free Pool has a lower recommended range. E.g. for our pool it recommends 60-80 with recommended minimum of 50.

I would rather run at the lower end (50-60) as it keep pH much more stable, however I am concerned of it hurting the plaster. I have read on other sites that low TA (e.g. lower than 100) is bad for plaster, as it encourages degradation and etching of the plaster surface.

Thoughts?
 
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