Do I Need a Water Softener?

Hardness is measured in grains per gallon (gpg). Anything under 3 gpg is soft, 3 to 7 is moderately hard, 7 to 10 is hard, and over 10 gpg is very hard. About 85% of U.S. homes are in the hard or very hard range, especially across the Midwest, Texas, Florida, and the Mountain West.

Signs that you have a hardness problem: white scale on shower glass and faucets, soap that does not lather, stiff laundry, water heater that runs out of hot water faster every year (sediment is insulating the bottom of the tank), and dishwasher spots even with rinse aid.

A salt-based ion-exchange softener swaps the calcium and magnesium ions in your water for sodium ions. Scale stops forming, soap lathers, fixtures stop spotting, and water heaters typically last 30 to 40% longer.

If you do not want to add sodium to your water or you cannot install a brine tank (apartments, some HOAs), a salt-free TAC conditioner does not soften the water but does change the calcium so it cannot stick to surfaces. It is a real product, not a scam, but it is a scale-control solution rather than a softening one.

If your hardness test reads under 5 gpg and you have no scale complaints, you do not need either system. Spend the money on a carbon filter for taste instead.