I am wondering if this is the type of spot etching you guys are talking about. The pool is almost one year old and it has this white splotching around the steps and swim-outs. I have always tried to keep my csi on the lower side 0/-.35ish. I have never had the need to clean my SWG yet. The surface is smooth and it just seems to be discolored.
Questions: Does this plaster surface look normal and is it expected to have this look or is this an example of what is being discussed
Is there anything I can do to prevent this except try to run the csi on the positive side?
Thank you for all your input,