Frequently Asked Questions

Diamond Soft is a water softener — it uses salt-based ion exchange to physically remove calcium and magnesium (hardness) from your water. Black Diamond is a carbon filter — it reduces chlorine, chloramine, taste, and odor, but it does not remove hardness. The Diamond combines both jobs in one tank.

Yes — they complement each other. Whole-home systems protect your plumbing and appliances; reverse osmosis delivers the cleanest possible water at the kitchen tap.

Black Diamond filtration needs little more than a periodic media check. Diamond Soft and The Diamond, since they soften with salt-based ion exchange, need standard softener salt added to the brine tank periodically.

It's the five-button metered valve on every Aquonyx system. It tracks your actual water use and regenerates or backwashes on that basis, rather than a fixed timer.

Yes. Any city plumbing permit required for your installation is handled and covered by Palmetto Water Systems at no extra cost to you.

Most single-system installs are completed in a single visit. Your rep will confirm timing based on your home's setup during the free water test.

Yes. We size systems differently for Columbia municipal water versus private wells in Lexington, Irmo, and Chapin, since the water chemistry is different in each case.

A Palmetto rep tests your water on the spot, walks you through what's actually in it, and recommends a system sized to your home — no pressure, no obligation.

Columbia, Lexington, Irmo, Chapin, Blythewood, and Northeast Columbia. If you're just outside these areas, reach out and ask.