Guide · Updated 2026-07-22
How to Clean Hard Water Stains (Austin Tap Water Guide)
Austin tap water runs 11–15 grains per gallon — officially hard. Those white spots on shower glass, chrome, and tile are calcium and magnesium deposits. Here's how to remove them.
Shower glass
Spray straight white vinegar, wait 10 minutes, scrub with a nylon-bristle brush, rinse, then squeegee. Repeat weekly to prevent buildup.
Chrome faucets and shower heads
Bag the head in vinegar with a rubber band overnight. In the morning, run hot water for 30 seconds. Restores 90% of spray force.
Tile grout and glass doors
Baking soda + vinegar paste, scrub with an old toothbrush, rinse with hot water. For sealed grout, avoid vinegar long-term — use a pH-neutral cleaner instead.
Prevention
Squeegee shower glass after each use, wipe faucets dry, and install a shower-head filter (~$25) to slow buildup. A whole-house softener is the permanent fix for Austin.
Frequently asked
+Will a deep clean remove existing hard water stains?
Yes for light-to-moderate buildup. For years of buildup, we may recommend a second visit or professional descaling.
+Is vinegar safe on natural stone?
No. Vinegar etches marble, travertine, and limestone. Use a pH-neutral cleaner instead.
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