Re: help with adjusting please
Poolhelp 101, you say you have brown stains. First thing to do is find out if they are metal or organic. Hold a vitamin C tablet on the stain and see if it disappears. If it does then you probably have iron staining and ascorbic acid will remove it. If you read through the Stains and Metal matters section of the forum you will find a lot of info on how to use ascorbic acid. Look for posts by Mbar (Marie), she is the forum's resident stain expert!
Retired pool store and commercial pool maintenance guy.
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