You might be thinking, “But my showerhead has white gunk!” I hear you. That’s probably not hard water scale. It’s likely a mix of minerals from your own water heater.
Over time, sediment from the tank can settle and re-dissolve. Or it’s just plain old dust and dried minerals from evaporation. Easy to clean with vinegar.
If you truly have crusty deposits that feel like concrete, then maybe—just maybe—you’re on a private well. But for 99% of Seattle proper? Soft city water all the way.
The coffee test (very important)
Seattle is famous for coffee. So does our soft water make it better? You bet it does. Soft water extracts flavors more efficiently, giving you a cleaner brew.
Hard water can make coffee taste bitter or flat. Seattle water helps your morning cup shine. No need for a fancy filter for taste alone.
Which State Has the Best Water Quality for Your Skin and Hair? - Clarins
Unless you hate the flavor of pure, crisp mountain water. Then, by all means, buy a Brita.