My hot tub has been getting these stains more and more frequently. I've cleaned them off with steel wool before, but they keep coming back.
anyone know what this is?
http://picasaweb.google.com/zaph0d.b33bl3br0x2/HotTub?authkey=Gv1sRgCOCxoMzQg4-Obw&feat=directlink
anyone know what this is?
http://picasaweb.google.com/zaph0d.b33bl3br0x2/HotTub?authkey=Gv1sRgCOCxoMzQg4-Obw&feat=directlink