Why Phoenix glass spots so fast
Valley tap water is very hard. It carries a lot of dissolved calcium and magnesium. When a drop dries on glass, the water leaves and the minerals stay. Dry air here makes drops evaporate quickly, so spots form after a single shower. Left for months, the minerals can etch the glass surface, and at that point cleaning will not bring it back to clear.
Prevention, in order of what works
- Squeegee after every shower. It takes under a minute. Hang the squeegee inside the shower so it gets used.
- Get coated glass. Protective coatings make water bead and run off. They reduce spotting and make cleaning easier. They do not make glass maintenance-free, and applied coatings need to be renewed.
- Soften the water. A whole-house softener removes most of the hardness minerals. It helps the glass, the fixtures and the water heater.
- Run the exhaust fan and leave the door open a little so the enclosure dries.
- Aim the shower head away from the glass where the layout allows.
Removing spots that are already there
- Spray equal parts white vinegar and water, let it sit a few minutes, wipe and rinse.
- For heavier buildup use a cleaner made for mineral deposits and follow the label.
- Do not use abrasive pads, scrapers or gritty powders. They scratch glass and strip coatings.
- Keep acids, including vinegar, off natural stone tile and check the care instructions for your fixture finishes.
- If the glass still looks cloudy when it is clean and dry, it is probably etched. Professional polishing sometimes helps; otherwise the panel gets replaced.
Choices that help when you remodel
| Choice | Why it helps |
|---|---|
| Frameless glass | No metal tracks for scale and soap to collect in |
| Clear glass with a protective coating | Easier to wipe clean |
| Fixed panel instead of a door | Less hardware and fewer seals to clean |
| Porcelain tile with epoxy grout | Scale has less to grab |
Textured or frosted glass hides spots but is harder to squeegee. Most of our walk-in showers, which run $9,800 to $24,000, use clear frameless glass, and we go over glass care at the final walkthrough.
Key facts
- Best prevention
- Squeegee after every shower
- Cause
- Minerals left behind when hard water dries
- Spot remover
- Equal parts white vinegar and water
- Avoid
- Abrasive pads and powders
Related questions
Where we do this work
Services: Walk-In Shower Remodel
Bathroom remodeling in Phoenix, Scottsdale, Peoria, and across the Valley.