Hard water and mineral scale
EPCOR's San Tan district runs 15 to 18 grains per gallon — roughly double the threshold at which water is classified as very hard. Every gallon leaves a little calcium and magnesium behind, and over a decade that builds a rough layer inside your pipes, cooks a sediment bed into your water heater and welds shower cartridges into their housings.
Signs to watch for
- White or greenish crust on faucets, showerheads and glass
- Shower pressure noticeably lower than when the home was new
- Water heater rumbling or popping while it heats
- Soap that will not lather, and skin that feels dry after a shower
- Spotted dishes and glassware no rinse aid seems to fix
- Fixtures you keep replacing sooner than you think you should
How we fix it
A whole-home water softener is the only thing that removes hardness, and it protects the heater, the fixtures and the pipe all at once. Pair it with under-sink reverse osmosis for drinking water, and descale the aerators and showerheads you already have.








