Hi there. I have a new dark plaster pool and apparently pretty hard water. Water is balanced now but pH was very high first month or two and have a lot of white/lighter stains and streaks (I expect some with dark plaster but not this much) so believe some is calcium. PH and alkalinity much lower now and I experimented with citric acid (powered) and it seems to darken the light streaks and get me back to the right color.
Question...is it safe to use this regularly (slowly and over time) while I work out the stains? Or does it damage the plaster?
Thanks.
Question...is it safe to use this regularly (slowly and over time) while I work out the stains? Or does it damage the plaster?
Thanks.
