Rick
Well-Known Member
Hardness 300 ppm. Very little change really.
Angela
A hardness of 300 is very hard water, and about what my well water is. Nashville tap water, in comparison, has a hardness of 80 - 100 ppm and is considered "Moderately hard" by EPA standards. EPA "soft water" is around 40-50 ppm, and "very soft" is half that again.
pH is irrelevant in discussion of hardness, but TDS is pertinent. Hardness is the measure of calcium and magnesium in water. In order to get 300 hardness you would need about 100 mg/L of calcium and 15 or so mg/L magnesium.
You may consider thinning out your water with rain water or RO.