Including filter system and high-performance Microcystins filter.
Microcystins are toxins produced by certain cyanobacteria, sometimes called blue-green algae, that can enter drinking water during algae blooms. Because these toxins differ from ordinary taste-and-odor problems, they can be present even when water appears clear. Open Sands homeowners often learn about microcystins from utility advisories, local reporting, or seasonal notices. One frequently mentioned form is microcystin-LR.
When microcystins are a potential issue in Open Sands, the priority is limiting exposure throughout the house—not just at a single faucet. Activities like cooking, making ice, rinsing produce and brushing teeth all involve tap water, so point-of-entry treatment is more protective than a kitchen-only filter. Because microcystins are dissolved in water, sediment filters alone won’t reliably remove them; a whole-house strategy treats water before it reaches showers, appliances, and every sink.
For whole-home reduction of microcystins, a single, high-quality activated carbon filter is generally the most effective choice. Catalytic or high-capacity granular activated carbon media is commonly specified because it adsorbs microcystins, including microcystin-LR, as water flows through the cartridge. This approach goes beyond a simple taste-and-odor cartridge by emphasizing stronger adsorption and sufficient contact time, and when installed at the main water line it protects every tap in an Open Sands home.
Effective control of microcystins depends on matching carbon media to the home’s flow rate and properly sizing the filter. If water passes too quickly through an undersized unit, adsorption may be insufficient. A correctly sized whole-house activated carbon system can also help reduce other organic compounds that cause odor and improve overall clarity; routine maintenance keeps performance steady and maintains reduction when microcystins are present.