I recently started adding Aqua Finesse Pool Care tablets to my pool since they are supposed to help with eliminating biofilms, slime, water mold, etc. A concern I have is that both of the ingredients, sodium carbonate and disodium metasilicate, are basic and so will increase the pH. This is a bit frustrating since I am already adding lots of acid to lower pH as a result of recently having had the pool replastered. My plasterer thought that the pH would settle down after the first season but yet here I am 2 years later seemingly battling pH increase more than ever, even though other readings are pretty decent (TA=110, CH=220). So it seems that the tablets are essentially adding pH increaser, while I'm adding pH decreaser!
What I am wondering is: will the tablets increase the pH to a certain point until they dissolve (in the skimmer) and then nothing beyond that point until they are added again the following week? Or will these two ingredients result in a constant increase? This scenario sort of feels like 2 guys in a canoe who are both paddling in different directions and not really getting anywhere!
Will the pH start to settle down during this season? I don't understand why the plaster - which is well cured by now - would continue to cause higher pH levels. I'm actually more concerned about that than countering the effects of the Aqua Finesse.
Any explanation very welcomed!! Thanks!