Including filter system and high-performance Giardia filter.
Giardia is a tiny parasite that can enter drinking water when hardy cysts contaminate a supply. You might also see it called Giardia intestinalis or Giardia lamblia; either name refers to the same microscopic organism that can travel with water into your house. Because cysts are invisible and do not alter taste, smell, or appearance, many Stern homeowners choose treatment where water enters the home for added assurance.
Water can become exposed to contaminants through events like pipe issues, cross-connections, or runoff that challenge treatment systems. Even with municipal treatment or private well care, some families in Stern prefer an extra layer of protection—especially if household members are sensitive to water quality. A whole-house filter makes sure showers, faucets, and appliances all receive the same level of treatment, giving local homeowners consistent control over what comes through their plumbing.
For whole-house protection against Giardia, the most reliable single option is an absolute cyst-rated membrane filter. These systems use a physical membrane with very fine pores to trap Giardia cysts instead of depending on chemicals alone. When the membrane is correctly sized for your home’s flow, it provides continuous coverage to multiple fixtures without gaps—an effective, mechanical way to reduce the chance cysts reach taps in Stern residences.
A whole-house cyst-rated membrane performs best when installed on the main water line so all incoming supply passes through the barrier. Its effectiveness depends on choosing the appropriate micron rating and keeping the unit maintained so flow and protection remain steady. Some Stern homes add a sediment prefilter ahead of the membrane to catch larger particles and extend membrane life, while the membrane stage itself is the key defense against Giardia intestinalis and Giardia lamblia. Mr. Pure Water can assess your plumbing and recommend the right system for your household demand.