Including filter system and high-performance Microcystins filter.
Microcystins are toxins produced by certain cyanobacteria, often called blue-green algae, that can make their way into drinking water during algae blooms. These compounds — including the commonly referenced microcystin-LR — are dissolved in water and may be present even when water looks clear, so they’re not the same as routine taste-and-odor problems. In Rio, homeowners typically learn about microcystins from utility advisories, local news, or seasonal notices, and it’s worth staying informed given our humid subtropical climate and coastal conditions.
When microcystins are a potential issue, the objective is reducing exposure throughout the entire house, not only at the kitchen faucet. Water used for cooking, ice, rinsing produce and brushing teeth can all matter, and whole-house treatment ensures consistent protection at showers, hose bibs and appliances. Because microcystins are dissolved contaminants, sediment-only filters won’t reliably remove them — a whole-home solution is the better way to treat Rio water at every tap.
For whole-home reduction of microcystins, a single, high-quality activated carbon filter is generally the most effective option. Catalytic or high-capacity granular activated carbon media is commonly used because it adsorbs microcystins, including microcystin-LR, as water passes through. This carbon treatment goes beyond a basic taste-and-odor cartridge by providing stronger adsorption and sufficient contact time when installed at the main water line before water reaches fixtures and appliances in Rio homes.
Effective control depends on matching the right carbon media to an appropriate flow rate and correctly sizing the system for your home. If water flows too quickly through an undersized unit, there won’t be enough contact time for adsorption to work well. A properly sized whole-house activated carbon system in Rio can also improve clarity and reduce other organics that cause odor, and routine maintenance keeps performance steady — especially important here where coastal corrosion and power outage impacts can affect plumbing and treatment equipment.