Including filter system and high-performance PCBs filter.
PCBs are a group of industrial chemicals that persist in the environment and can occasionally turn up in drinking water. Also called polychlorinated biphenyls, they were commonly used in older electrical gear and some manufacturing, and when they reach waterways they can be slow to break down. In Arran, homeowners typically learn about these contaminants from utility notices, community conversations, or private testing, and rightly wonder what that means for their household water.
Because PCBs usually occur at very low concentrations, you won’t be able to see, smell, or taste them in tap water. They can enter sources through historical contamination, disturbed sediments, or runoff that carries pollutants into surface waters. Even in Arran where your water may look crystal clear, concerns about long-term exposure for cooking, bathing and laundry are valid — which is why many local homeowners choose a whole-house solution that treats all the water that enters the home.
The most effective single-filter option for a whole-house system to reduce PCBs is a quality activated carbon filter, typically using catalytic carbon or a carbon block designed for strong adsorption. PCBs are hydrophobic organic compounds, so they’re well suited to capture by carbon media rather than by simple sediment filters. As Arran water flows through the carbon, polychlorinated biphenyls can adhere to the media and be reduced before reaching your taps, while the same carbon stage often helps lower other similar organic contaminants.
For reliable PCB reduction, an activated carbon filter must provide sufficient contact time and enough media volume to match your home’s peak flow. A sediment pre-filter is commonly installed ahead of the carbon to protect it from clogging, but the carbon stage is the primary component for PCBs. Proper system sizing and regular media or cartridge replacement are important because adsorption capacity can become exhausted; Mr. Pure Water can help Arran homeowners select and maintain a whole-house carbon system sized to their plumbing and usage patterns.