Including filter system and high-performance Protozoa filter.
Protozoa are tiny living organisms that can enter drinking water when runoff, wildlife, or treatment interruptions affect sources—conditions that can follow heavy tropical storms in the Keys. Homeowners may recognize names like Giardia and Cryptosporidium. Because these are particulate, living organisms rather than dissolved chemicals, they respond differently in plumbing and won’t be addressed by every filter type. The key to treating protozoa is physical removal rather than chemistry.
In Marathon, concerns about protozoa often surface after boil-water notices, storm-driven runoff, main breaks, or when a home depends on a private well or cistern. These microscopic organisms can appear intermittently, so water quality may seem inconsistent from week to week. Sometimes residents spot cloudiness or extra sediment, but protozoa like Giardia and Cryptosporidium aren’t always visible and usually don’t change taste or smell. A whole-house solution protects showers, washing machines, sinks and outdoor taps across your Marathon property, not just the kitchen faucet.
For whole-house reduction of protozoa in Marathon homes, the most reliable single device is a correctly sized mechanical sediment filter with an absolute micron rating fine enough to stop protozoan cysts. Practically speaking, that means an absolute 1-micron (or finer) cartridge that strains particles instead of depending on chemical adsorption. This approach targets the size range of Giardia and Cryptosporidium, capturing them as water enters the home and protecting plumbing and appliances throughout the property.
Because fine mechanical filters trap very small particles, it’s important to size the system for your Marathon home’s flow rate and to replace cartridges on schedule to preserve performance. Properties exposed to coastal sediment, moderate water hardness, or heavier particulate loads may benefit from an upstream prefilter to reduce clogging and pressure loss. While disinfection can play a role in microbial control, a micron-rated barrier filter is a simple, dependable way to lower protozoa risk across the whole house; Mr. Pure Water can recommend the right housing and cartridge for your specific setup.