It depends on which part of WASD's system serves your address. Nobody can answer that from WASD's 2025 report alone, because it prints no hardness figure. The Alexander Orr Jr. plant uses lime treatment to reduce hardness. The John E. Preston plant uses enhanced softening. Florida DEP's 2024 sample file shows total hardness medians of 232 to 263 mg/L at the five South Dade plants. The guide on hard water in Miami explains the difference between those systems in more detail.
A softener is a separate piece of equipment. It needs space for a second tank that holds salt, a drain for the rinse water, an outlet for the valve, and an ongoing supply of salt bags. Those are real costs and real constraints worth thinking through before you decide. Softeners are not part of what we're launching with, but you can read more on the water softeners page and on the softener vs. filter guide if you want to see how the two compare. If you're deciding between a whole-house filter and an under-sink reverse osmosis system, the whole-house vs. reverse osmosis guide covers that question. If you'd like to talk through what fits your home, reach out to us and we'll be straight about what we can and can't help with.
