Including filter system and high-performance ADONA filter.
ADONA is a synthetic chemical that’s often grouped with PFAS and can turn up in drinking water. Homeowners in Marathon commonly hear about these contaminants from utility notices, local news, or private well testing. Although ADONA is discussed alongside other PFAS compounds, it’s a distinct substance and may call for a specific treatment plan. Understanding possible sources and how it’s typically treated is a good first step for protecting your household water in the Florida Keys.
Because ADONA is used in some industrial applications, it can make its way into water supplies and remain present for long periods. It won’t usually change the taste, smell, or look of water, so sensory checks aren’t reliable—especially in a coastal, humid place like Marathon where corrosion and salt air can affect plumbing. That’s why testing and a targeted whole-house approach matter: a system at the point the water enters your home treats every tap, not just the kitchen sink.
For treating ADONA in a whole-house setup, the most commonly recommended single filter type is a high-capacity activated carbon unit. Granular activated carbon (GAC) offers extensive internal surface area to adsorb many trace organic chemicals as water passes through. Proper sizing for Marathon homes—accounting for moderate water hardness and your household flow rates—is important so the carbon provides enough contact time to be effective for showers, laundry, and faucets across the property.
A whole-house carbon filter is usually installed at the main water entry so it treats all water automatically without changing daily habits. The carbon media needs periodic replacement based on usage and contaminant load to maintain performance. If your Marathon property uses a well or cistern—or if incoming water carries sediment—adding a sediment prefilter ahead of the carbon helps prevent clogging and preserves media life. Mr. Pure Water can size and install a whole-house GAC system tuned to your plumbing and local conditions in Monroe County so ADONA reduction is steady throughout your home.