Quick take: Miami-Dade’s Water and Sewer Department (WASD) disinfects drinking water year-round. For a short, scheduled maintenance window, the county may switch from its usual disinfectant (combined chlorine, also called chloramine) to free chlorine. During that period you might notice a stronger chlorine taste or smell, occasional cloudy water, or brief low-pressure moments — and there are a few households (like aquarium owners and home dialysis) that should plan ahead.

This guide explains what the free chlorine switch is, why Miami-Dade does it, what you should do if you notice changes at the tap, and which filtration options make the most difference for taste, odor, and confidence.

What is Miami-Dade’s “free chlorine switch”?

Most of the time, Miami-Dade uses combined chlorine (chloramine) for disinfection. Chloramine is created by combining chlorine with ammonia. In a scheduled process, WASD temporarily switches to free chlorine at its regional treatment facilities.

In an October 2025 release, Miami-Dade stated that this temporary change would occur from October 13 through October 26, 2025. (Miami-Dade County release)

You might also hear this called a chlorine conversion, free chlorine maintenance, or a system burnout. The practical meaning is simple: water is still treated and safe for normal household use, but the disinfectant can be more noticeable.

Why does WASD do it?

Miami-Dade explains that using free chlorine temporarily provides a stronger disinfection and bleaching process than combined chlorine and supports ongoing water quality delivery. (Miami-Dade County release)

During this period, the county also notes that employees may be seen flushing water lines to ensure the entire distribution system is included. (Miami-Dade County release)

What homeowners may notice at the tap

Miami-Dade says residents may notice:

If your water looks cloudy

WASD recommends letting the water run for 3 to 5 minutes until it runs clear, noting it’s a temporary cosmetic effect that does not impact water quality. (Miami-Dade County release)

Who should take extra precautions (dialysis + aquariums)

For most households, the free chlorine switch mainly affects taste and odor. However, Miami-Dade calls out certain customers who should seek guidance:

If you have a saltwater tank, reef tank, or sensitive freshwater setup, assume you’ll need to treat or filter water before adding it to your system during the switch. If you do home dialysis, confirm with your provider that your pretreatment steps are appropriate for the disinfectant being used.

How to filter chlorine taste and odor in Miami homes

The most effective comfort upgrade during a free chlorine window is usually carbon filtration. Carbon media is designed to reduce chlorine-related taste and odor, and it also supports a better shower experience in many homes.

Whole-home filtration: best for showers, laundry, and overall comfort

If you want better-feeling showers, less odor at bathroom sinks, and a more consistent experience throughout the home, a whole-home system is the right category. Many Miami homeowners also want protection against scale buildup that affects fixtures and appliances.

Suggested package: Home Shield ($1,799–$2,199) — a Waterdrop whole-home solution installed by CrystalFlow Miami.

Under-sink reverse osmosis: best for drinking, cooking, and ice

If your priority is drinking and cooking water — especially coffee, tea, and ice — under-sink reverse osmosis (RO) is the gold standard for taste and performance. RO setups often include carbon stages that improve taste and odor, and the membrane provides an additional layer of filtration for many dissolved contaminants.

Suggested package: Kitchen Guard ($699–$849) — a Waterdrop under-sink RO system with professional installation.

Whole-home + RO: best long-term setup for families

If you want a consistent experience at every tap plus premium drinking water at the kitchen sink, combining a whole-home solution with RO is typically the most satisfying approach — and it’s the most resilient during seasonal disinfectant changes.

Suggested package: Pure Life ($2,699–$3,199) — whole-home treatment plus under-sink RO.

All CrystalFlow Miami systems are Waterdrop and NSF/ANSI 42, 53, 58 certified.

Hurricane season water prep (Miami-Dade guidance)

Miami-Dade County recommends having emergency supplies stocked by June 1, including a 7-day supply of water (one gallon per person per day, including pets). (Miami-Dade County kits and checklists)

Filtration helps day-to-day comfort and convenience. For emergency planning, your most important step is having adequate stored water and staying informed about official notices.

Questions about your neighborhood’s water during the switch?

Miami-Dade’s release includes water quality contact numbers for the WASD Laboratory Division: customers north of SW 8th Street can call 786-552-4738, and customers south of SW 8th Street can call 786-552-4181. (Miami-Dade County release)

Book a Free Water Test

If you want a clear, personalized recommendation (whole-home, kitchen-only, or both), start with a free water test. We’ll help you choose a Waterdrop system that matches your home, your taste preferences, and your goals — without guesswork.

CrystalFlow Miami
Call (786) 661-1121 or email info@crystalflowmiami.com

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