Hi! I read Pool School and the suggested articles (from this site and others) and I am still confused how to balance my chemicals. We have an approx 23,000 gallon in-ground pool which has turned green and cloudy (swampy?) over the winter. If it matters, our pool looked pretty good until about the beginning of May and then it started getting more green and opaque all of the sudden.
My current situation: The guy who opened the pool yesterday added 4 gallons of chlorine. Today I tested the water and the pH & alkalinity are very high. I added some pH minus and have been stuck on the internet researching ever since.
I can read the instructions on the back of the chemicals about how much to add but I am wondering:
- What order to add the chemicals in?
- How long to wait after adding chemical to retest the water?
- Will the pool have to be "shocked" more than once during the opening? (Pool guy said the 4 gallons he added would shock it but I read an article that say not to shock it until after the other chemicals are balanced.)
Thanks in advance for any help you can provide!