The 104 mg/l of hardness coverts to 6 gpg. That and more than .3 ppm of iron is sufficient for scale, white water spots and rust staining. You could use a softener. I suggest one using a Clack WS-1 control valve that is correctly sized for the number of people, the number of bathrooms and the type of fixtures in them. The constant SFR gpm of the softener must be higher than the peak demand flow rate gpm of the house or the softener.
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Gary Slusser
22 yrs in water treatment and well pumps, 13 yrs helping people on the 'net to help themselves.
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