I’m Marisol Ochoa. In my Riverside ranch house, my reflex when shower deposits appeared was to reach for vinegar and scrub the tile grout along with everything else. It seemed like a straightforward way to dissolve the buildup without being hard on the grout. As of mid-September 2026, that is a habit I would stop and think about. Here in California, a cleaner that works on the deposit can still be the wrong cleaner for the material beside it.
The local water gives that reflex a concrete setting. Riverside Public Utilities reports water hardness of 189 mg/L, or 11 grains per gallon, for its water. The U.S. Geological Survey says hard water can leave mineral buildup on fixtures. So I understand why a shower with recurring deposits sends a person looking for something that dissolves minerals. The mistake is letting that job turn into repeated vinegar cleaning of cement-based grout…