It took awhile and a lot of liquid chlorine to get to the numbers listed. I added the chlorine slowly 1/2 gallon of 6% at a time. Now that the chlorine is starting to hold ,the stain is starting to come back. I added the rest of the metal free on hand ( about 15 oz) . I will watch it and add more if thats what I need to do?The pool liner looked great no stain anywhere , the water looked fine with a slight bit of cloud. I sure hate to see the stain come back!

FC 2.6,CC .08,PH 7.0, Alk 125, cal hd 200, CYA 80, copper 0.05 or less