Hard water and scale
What you may notice
- White, crusty scale on faucets, showerheads, and glass doors
- Spots on dishes and glassware
- Soap and shampoo that won't lather or rinse clean
- Scale building up inside water heaters and appliances
Possible causes
- Dissolved calcium and magnesium the water picks up from rock and soil
- Found on both private wells and public water
How John diagnoses it
John looks at how hard your water is and whether iron or low pH is also in the picture, because both change how a softener has to be sized and set up.






