Water spots are marks left on fabric when water - particularly hard water - evaporates, leaving mineral deposits behind.
Appearance
- Lighter marks on dark fabric
- Circular or irregular shapes
- May have defined edges
- Often clustered
Causes
Hard water contains calcium and magnesium. When water evaporates, minerals remain as visible deposits.
More noticeable on: - Dark colours - Smooth fabrics - After splash contact
Prevention
- Address water hardness
- Rinse thoroughly when washing
- Don't let water dry naturally on fabric
Removal
Usually removed by: - Normal washing - Vinegar treatment (dissolves minerals) - Laundry stripping (for buildup)
In Hard Water Areas
If water spots are persistent: - Consider water softener - Use vinegar rinses - Accept as minor issue
Related Terms
- Hard water - The cause
- Residue - Related buildup