Rank amateur here!! Don't beat me up too bad, LOL. I've studied just enough to want t know how to identify what kind of control valve a unit has. The manufacturer's websites don't seem to say. I'm open to suggestions, but I've looked at the proverbial big box stores, so far. Whirlpool cabinet to be exact. I haven't found any dealers that will come to do a test eyt. It's 50 miles one way and 90 the other and I guess they have enough business!! So, I don't have any hardness numbers yet to punch into a calculator. From generalities of hardness, mostly all calcium, I'd say i'm looking at a 30K unit. One person, one bath.
thanks all !!
thanks all !!