Hard Water

Let’s start with what happens in real life.

You notice scale. You buy a cheap hardness test strip (or you don’t). You start reading about “grain capacity” and suddenly you’re staring at a sentence like:

48,000 grain metered softener with 10% crosslink resin

…and you’re thinking: okay, sure, but how much does it cost to get this thing installed in my house?

Here’s the answer I wish more sites gave: