Sorry for the lack of information. Heres what I have.
We also need to know the Cyanuric acid level and the water temperature. Water Temp. is 75 deg.
What does your water look like now? Went on vacation for a week and came back and the water was a little cloudy. After I shocked it and added routine amounts of algecide and chlorine, the water now appears very clear and free from any algea.
What does the plaster look like? Looks good. Its painted light blue but does have some white spots that have appeared over time. What color is it supposed to be, and what color is it now?
Are there any stains, scale or etching? Not any noticeable stains. Is there any copper in the water? Not sure about the copper, they didnt test for it.
Do you have a heater? No heater.
Thanks for your help,
Patrick