Ok I've been fighting this for 3 weeks now. (Quick background. I had everything in check but I forgot about adding Muratic acid to lower my PH for about 2 weeks and that's all it took.)
I've taken my water to a pool store and EVERYTHING is in check and perfect EXCEPT for my PH which is at 8.0 and my Chlorine which is at 4ppm. I've been adding Muratic Acid about 1/4 of a gallon every other day for 3 weeks not and my PH hasn't moved 1 bit. My chlorine is still at 4!!! I can see damage being down to my sky blue plaster which is little patches of what looks like a dirty spot.
So a pool tech said the only way to fix this is to pump out "some" of my water and add new water. Another Pool tech is telling me just continue to add Muratic Acid. I've done the muratic acid deal and now am faced with pumping out some of the water, but I wanted to check with all you guys since you've been a GREAT help in the past.
Hope I can find something soon and I'd hate to have other issues such as Algae once the weather gets warmer.