What "hard water" actually means
As rain and river water move through rock and soil, they pick up dissolved minerals — mostly calcium and magnesium. The concentration of those minerals is what we call hardness, measured in grains per gallon (gpg). The scale runs roughly: under 1 gpg is soft, 1–3.5 is slightly hard, 3.5–7 is moderately hard, 7–10.5 is hard, and above 10.5 is very hard.
Hard water is not a health problem. Calcium and magnesium are minerals your body uses. The problem is what they do to everything the water touches on the way to you.
Where Clark County lands
The numbers come straight from the utilities. The City of Vancouver's 2025 Annual Water Quality Report lists hardness from 55 to 130 ppm across its nine water stations — divide by 17.1 and that's roughly 3 to 8 grains per gallon, moderately hard to hard depending on which wells feed your neighborhood. Clark Public Utilities, which serves Salmon Creek, Hazel Dell, Felida and much of unincorporated Clark County, lists an average of 87 ppm in its 2025 report, about 5 gpg. Well homes in Battle Ground, Brush Prairie and Hockinson often test higher than either. Your neighborhood, your plumbing, and even your street can shift the number, which is why we test every home instead of quoting from a map.
What it's quietly costing you
- Your water heater dies young. Scale builds up on heating elements like plaque in an artery. The heater works harder, costs more to run, and fails years early — usually the single biggest hard-water expense in a home.
- Fixtures and glass crust over. The white chalky buildup on faucets and shower doors is mineral scale. You can scrub it forever, or stop making it.
- Skin and hair feel it. Hard water reacts with soap to form a film that doesn't rinse clean — the classic "squeaky but dry" feeling.
- Laundry and dishes suffer. You use more detergent for worse results, and towels come out stiff.
What a softener actually does
A water softener runs your water through resin beads that swap calcium and magnesium ions for sodium ions — a process called ion exchange. The minerals stay in the tank; the water comes out soft. Periodically the system rinses the resin with brine from the salt tank (that's why you add salt) and flushes the minerals down the drain.
The detail that matters when you're shopping: metered vs. timered regeneration. Old and cheap units regenerate on a clock whether you used water or not, wasting salt and water. A metered unit — which is all we install — regenerates based on actual usage.
Do you need one?
If you have white crust on fixtures, spots on dishes, dry skin after showers, or a water heater on its second replacement — probably. But "probably" isn't a diagnosis. Our tap test is free, takes 20 minutes, and gives you the actual number. If your home tests soft, we'll tell you and leave.