Hi all, this is my first post, though I've learned a heck of a lot from this site thus far. I've gotten to know my pool over the last 9 months and have the TF100 to keep chemicals in balance. After returning from 2 weeks away, the chlorine in my pool had reached 0 (my liquidator ran out of bleach). I have finished the SLAM process and now everything is in balance, however, I have a slight brownish discolouration on most of the walls and floor that I can't sweep off. This didn't all happen during this trip, rather it occurred over time but much worse lately. Last year I had the same thing and while replacing some of the water (because of high CYA), I used Muratic Acid to remove it. I tried to take a picture but the difference in the brownish areas and the blue areas are not visible in the picture.
Can someone tell me how to remove this stain and keep it away? Thanks!
Can someone tell me how to remove this stain and keep it away? Thanks!