I have recently used Stain Free from Natural Chemistry to clear the iron stains on my skimmers and light/return fixture. The stains did clear, so I added Metal Free maintenance dose (I have already put the initial dose & now maintaining). The water was clear for about 24 hrs, then it turned very cloudy, and I found no FC when I tested. I suppose that algae started when the FC was down to 0 ppm for the Stain Free dosage.
I shocked it to 20 ppm, on Tuesday night, and noticed that the iron stains are back on Thursday morning. I added more of the Metal Free, about 6 to 7 oz, and an hour or so later the water is green.
This moring, Thursday, my readings are:
T/A 170 ( it does run high)
PLEASE advise what I should do. Thank you very much for the help in advance 8)