All - So we have had our pool for about a year now. We used it last year for a few months before we closed it, and it has been open since late April. We have never had any algae issues and our chemicals have stayed balanced. I test everything myself using a Taylor kit. When I opened it this spring there was a small patch of brown on the pool floor directly beneath the winter cover mesh area. It stained my brush bristles black when I tried to clean it and it never really went away. I posted a comment here but no one was really sure what it was...fast forward to the last month and I am starting to see areas of brown on the walls (pictures attached). I am at a loss of what is going on. I have brushed and scrubbed with a magic eraser and it does not come off. We were on vacation for the past week and I brought the FC up while we were gone (20 ppm then tapering to 14 ppm).
FC 12 (coming down from high levels while we were gone)
CC 0
pH 7.6
TA 100
CH 230
CYA 50
Salt 3400
One note of interest - I run my SWG at 15-20% unless our grandkids are over, then a little higher. I have only added muriatic acid once this year
Thanks for the help
FC 12 (coming down from high levels while we were gone)
CC 0
pH 7.6
TA 100
CH 230
CYA 50
Salt 3400
One note of interest - I run my SWG at 15-20% unless our grandkids are over, then a little higher. I have only added muriatic acid once this year
Thanks for the help
