North Texas tap water carries dissolved calcium and magnesium. Heated in a dishwasher or ice-maker line, it leaves scale on heating elements, clogs inlet-valve screens and leaves white film on glassware.
Signs of Hard-Water Trouble
- White film on glasses and dishwasher walls
- Small or hollow ice cubes
- Washer slow to fill
- Crusty buildup on spray arms and inlet screens
What Helps
- Keep rinse aid filled and run a descaling cycle per the manual.
- Replace refrigerator water filters on schedule.
- Clean washer inlet screens yearly.
- Consider a water softener if scale is heavy.
For current hardness figures, see the City of Plano’s annual water quality report.
When to Call
If the film returns after cleaning, scale on the heating element or spray arm needs service. Dishwasher repair.
