I agree with MBar. If the FC is not holding something is eating it up. Metals don't do that. Take care of the chlorine demand first and then worry about treating the stains.
I agree with MBar. If the FC is not holding something is eating it up. Metals don't do that. Take care of the chlorine demand first and then worry about treating the stains.
Retired pool store and commercial pool maintenance guy.
OK - I am dealing with algae filtering first, then the stains. The stains really bug me thoughThe water is much clearer today after another day of 15 CL, so I'll wait a few more days before moving on to the stain. Thanks.
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