This is my second summer with my pool: above ground 24 feet with SWG (AquaTrol).
I nerver had to add anything so far (last year and this year) to lower my PH, but I may need to do it soon. M'y PH is trying to reach 7.8
I have read here many time that people put muriatic acid to lower their PH. I don't know nothing about muriatic acid, I had to Google it to know what it is. I have never seen it on the shelve at the pool store neither (maybe they have it, I have never looked for it, I will check next time).
So, in case I need to lower my PH I bought some PH Minus (powder), does it do the same thing than the muriatic acid everybody is talking about Is adding PH Minus as god as muriatic acid ?