If your water is “hard” (loaded with calcium and magnesium), and you have low levels of dissolved manganese (under 0.5 mg/L), a standard water softener can work miracles. It swaps out those minerals for sodium—like a trade deal for your faucet.
But here’s the kicker: This method only works if the manganese is dissolved and the concentration is low. If you have high manganese, you’ll just end up with a softener that looks like a used coffee filter. Not fun.
Also, you’ll be adding a bit of salt to your water. That’s fine for most people, but check with your doctor if you’re on a low-sodium diet. Your kidneys are precious, so don’t mess with them for the sake of a sparkling sink.
