Hard Water
Build-up not coming off
Hard water calcium / haze not coming off the glass
Likely causes
- Improper Scrubbing
- No steel wool
- Not enough chemical
Step-by-step fix
- Apply a thick coat of chemical onto the window
- Use the steel wool in your work bag to throughly scrub
- Let chemical sit on window for 1-2 minutes if extensive buildup
- Rinse and scrub as usual
What NOT to do
- Leave it as is
When to stop and call the manager
If buildup absolutely does not come off