Including filter system and high-performance HPC Bacteria filter.
HPC bacteria are a wide group of naturally occurring microorganisms that can exist in water and in home plumbing. You may also hear the term heterotrophic plate count, which is a lab test used to estimate overall bacterial growth rather than identifying a single germ. In White City’s warm, year-round plumbing environment homeowners sometimes notice signs like musty smells, slippery residue, or faster biofilm buildup on showerheads and faucets — all common indicators that conditions favor more bacterial growth.
Heterotrophic plate count readings tend to increase when water sits in pipes, when sediment or organic material is present, or when biofilm gets established on interior plumbing surfaces. Those changes can bring subtle shifts in taste or odor, especially in systems with hard water that contributes to mineral scale. While many heterotrophic bacteria aren’t known to cause illness, elevated HPC bacteria can signal your water system needs attention; treating water for the whole house helps reduce the factors that allow regrowth downstream of the main shutoff.
To lower HPC bacteria across an entire home, a whole-house ultraviolet (UV) disinfection system is generally the most effective single-filter option. UV inactivates microorganisms as water flows through a stainless chamber bathed in ultraviolet light, treating water in real time without chemicals or altering taste. When installed where water enters a White City home, a properly sized UV system protects every tap, shower, and appliance from heterotrophic plate count concerns.
For UV to perform reliably, the water feeding the unit must be clear enough for light to penetrate — heavy sediment, iron staining, or cloudiness can shield microbes from the lamp. That’s why many whole-house packages pair UV with prefiltration, while the UV stage remains the core technology targeting HPC bacteria. Correct sizing to match your home’s flow rate and routine lamp and sleeve maintenance keep the system effective; Mr. Pure Water can assess White City plumbing and recommend the right whole-house UV setup for lasting control of heterotrophic plate count.