Hard water symptoms that a Brita filter will not solve
If you experience any of the following, a Brita filter alone is not the solution -- a water softener is needed: (1) White crusty scale on faucet aerators, showerheads, and coffee maker heating elements. (2) Soap that does not lather freely in the shower or sink. (3) Laundry that feels stiff and scratchy after washing, or that requires more detergent than the package recommends. (4) Water heater making popping or rumbling sounds (mineral scale on the heating element). (5) Spots on dishes and glassware after dishwasher cycles. These are all hardness symptoms that activated carbon filtration cannot address.
Hard water symptoms that a Brita filter can help with
Brita filters are appropriate for: (1) Chlorine taste and odor in drinking water from a municipal supply. (2) Lead in drinking water from older plumbing (Brita Longlast, NSF 53). (3) General taste improvement in areas where the water is chemically safe but unpleasant. If your Brita-filtered water still tastes or smells of chemicals, or if you see scale building up anywhere in your home, the water has problems that a pitcher filter alone cannot address.
Choosing a water softener to pair with your Brita filter
For most U.S. households with hard water, the standard recommendation is: (1) Install a whole-home ion exchange water softener (Fleck 5600SXT, Pentair, or Kinetico) at the main supply line. (2) Continue using the Brita pitcher for drinking water if desired -- softened water is safe to drink but some users prefer the taste of Brita-filtered softened water vs. softened water directly. (3) Do not discontinue the Brita filter after softener installation if lead reduction (NSF 53) is important -- softeners do not remove lead, and the Brita Longlast filter is still the appropriate drinking-water lead reduction device.