Hello Moderator!
I am in a vicious cycle the local pool store appeared to have lead me into!
1) water green, chlorine good, TA low or almost inexistent, pH good. Advice: add TA (sodium bicarb)
2) TA good, chlorine good, pH too high! Water still green. Advice: chlorine can not be active, therefore add pH - (sodium bisulfate)
3) Go to 1) !!!!

My questions: 1) muriatic acid and sodium bisulfate both reduce pH. Which one does NOT affect alkalinity?
2) How do I get out of this vicious cycle and get clean water??!! This cycle sure is very lucrative for pool distributors! buy TA then buy pH minus, then buy more TA, then more ph - ....

Thank you so much in advance!