I have a Saltwater Pool. It's ~10yrs old. We have owned the house for a year. Chemicals have always(well mostly) been in balance.
Just in the past few weeks I noticed this white haze around the spa.
I am assuming the flagstone is not sealed.
Any idea what could of caused this? It's a pretty drastic color change and seemed to just appear. It certainly wasn't there last year and did not seem to gradually color.
I have read that washing with Muriatic Acid should clean it off.
Thank you in advance!