Thanks to everyone for your thoughtful suggestions. Unfortunately, this unit is not under warranty so I am sure any work would be at my expense. If the improvement is worth the $$, then I don't mind paying it---will have to think it over. I will talk to the RV service manager and see what he says. I just bought this unit a few weeks ago, consequently, I am the second owner.
I've read about Calgon water softener before, but have never used it. Is it a liquid or dry product? Do you use it every time after emptying tanks?
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