Hi all, if you've seen any of my posts, you may have followed my progressions from ascorbic acid treatment for iron stains to black algae. Now that the pool is clear, we did a treatment on the sand filter with Proteam Filter Magic. We followed the deep cleaning directions and put 32 ounces in overnight then backwashed in the morning. We now have this film on top of the water. Is this from the filter treatment? How do we get rid of it?
The water is clear. Chlorine still high as we've been keeping it up the week post black-algae so it's around 10-11 ppm. PH 7.2. TA 7. CH somewhat difficult to measure because of the film but I think in low 200s.
The water is clear. Chlorine still high as we've been keeping it up the week post black-algae so it's around 10-11 ppm. PH 7.2. TA 7. CH somewhat difficult to measure because of the film but I think in low 200s.