Water problems library
White scale and spots
Chalky buildup on faucets and showerheads, cloudy film on glassware, kettle crust.
Possible causes
- Minerals left behind when hard water evaporates — the visible signature of hardness.
What evidence helps
Same as hard water: a measured hardness value for your home.
Honest next steps
Confirm hardness
A quick strip or your utility's reported value tells you if scale is mineral hardness.
Treat the cause, not the spots
Cleaners remove today's scale; only softening prevents tomorrow's.
Size before you buy
Wrong-size softeners waste salt, water or money — measurement first.
Scale doesn't indicate contamination. It indicates minerals — annoying, costly, and treatable.