Since I joined this site my pool has been awesome. But now I am facing green pool. My ph is 7.5 and my chlorine is off the charts even though I have not added that much. Right now I have it on recirculate, but it is greener every day. I have a 32,000 gal cement pool. What do I need to do if the chlorine is registering so high. I am using a 6-way HTh test.