Hi All,

New to this forum and I need some help. I have a new 27,000 gal. gunite pool. I have a SWG with a cartridge fiter. My pool water is clear but has turned a lime green. I tried shocking it twice over the last few days but no change. I had it checked for algae, negative. I had it filled with town water but top it off with well water.

I am hoping someone can steer me in the right direction.

My chemistry today is as follows;

TC 1.0
pH 7.2
Alk 110
CA 220
CYA 40