Including filter system and high-performance HPC Bacteria filter.
HPC bacteria are a diverse group of naturally occurring microorganisms that can appear in household water and inside plumbing. You may also encounter the term heterotrophic plate count, which describes the lab method used to estimate overall bacterial growth rather than identifying one specific pathogen. Elevated counts can indicate conditions that let bacteria multiply, and homeowners sometimes notice musty smells, slippery or slimy buildup, or faster biofilm formation on fixtures and showerheads in response.
HPC levels often increase when water sits in pipes, when sediment or organic material provides nutrients, or when plumbing encourages biofilm growth. Those same factors can cause changes in taste or odor, particularly where organic matter is present. While many heterotrophic bacteria aren’t known to be disease-causing, higher heterotrophic plate count readings can still signal that a household’s water system needs attention. In Bairs Den, taking a whole-house view treats the water as it enters your home and helps limit downstream regrowth in pipes and fixtures.
The most effective single filter-style option for reducing HPC bacteria throughout a home is a whole-house ultraviolet (UV) disinfection system. UV inactivates microorganisms as water flows through a stainless chamber exposed to a UV lamp, treating water in real time without adding chemicals or altering taste. When installed at the main water entry for a Bairs Den home, a UV system protects every tap, shower, and appliance from ongoing microbial activity.
For UV to perform reliably, the water feeding the unit must be clear enough for the light to penetrate—heavy sediment, iron, or cloudiness can shield microbes. That’s why whole-house installations often include a prefilter before the UV chamber, while the UV stage remains the primary technology for targeting HPC bacteria. Correct sizing for your home’s flow rate and regular lamp and sleeve maintenance keep the system working well; Mr. Pure Water can help Bairs Den homeowners select and install the right whole-house UV setup for their plumbing.