"Dimitrios Paskoudniakis" wrote in message
...
We noticed that most of the plastic fixtures in our hot tub, naturally
gray in color, are all coated in a gold color below the waterline. My
wife performed a routine chemical treatment yesterday, including adding pH
raiser and Alkalinity raiser. A chem strip shows normal levels.

Any idea what this is and will it resolve?

Have your water tested. Sounds like some sort of mineral problem. You might
want to look into a water softener.

Or this: http://www.askalanaquestion.com/mine...a_problems.htm

I haven't tried it but it claims to be an alternative.

Jim