I have a SWG system that has very fast pH drift. I use poolmath nearly every day and add about 20oz of MA daily. I target a pH of 7.4-7.5, but 3 days of not adding MA and it's 7.8-8.2. The plaster is seeing the effect.
I just purchased a stenner pump, plumbed in the T and I'm ready to set it all up, when of course I started thinking.... Should I just dose bleach and deal with small amounts of acid manually, or continue with my plan of dosing acid?
I can always switch what I'm dosing (assuming a good cleaning).
One last thought - the pool was originally filled with tap water, but the auto fill system fills with softened water (no other option). Could the soft water be contributing to the discoloration/scale?