What's a reliable place to have water tested for hardness? Someplace without a vested interest in the results.
I'm in Eastern Missouri. My water comes from a well run by a water district, Montgomery County Water District. They claim 9 grains of hardness, but my plumber claims it's a lot higher than that.
I have a WaterBoss softener that I use Potassium Chloride in and have it set as if the hardness were 20 grains or so, based on my plumbers claims. If I know the true hardness, I might be able to lengthen the regen time and save on consumables.