cyber-junkie Posted June 10, 2009 Report Share Posted June 10, 2009 Hi I have a beautiful almond pearl spa, where the water splashes out and dries there is a residue, I have a waterhardness of about 250 so I use 1/2 - 1/2 city water and water from my softner and the hardness is about 130 now....what is being deposited on the shell, is it calcium or salt residue? and what is the best to clean it? Thanks Quote Link to comment Share on other sites More sharing options...
medicineman Posted June 10, 2009 Report Share Posted June 10, 2009 A mild acid solution will dissolve hard water marks..... Mix some pH down and water. (mild solution) Wear rubber gloves if you need and rinse and dry. Quote Link to comment Share on other sites More sharing options...
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