Including filter system and high-performance Manganese Staining filter.
Manganese staining often appears as dark brown or black marks on sinks, tubs and toilets, and can leave laundry looking dingy or leave spots on dishes. Water can look clear at the tap but then oxidize when exposed to air, leaving stubborn discoloration. Some homeowners also notice a metallic taste or fine sediment settling in the bottom of a glass. The practical result in Lewis houses is water that’s harder to keep clean, even with frequent scrubbing.
Manganese is a naturally occurring mineral that can enter homes from certain groundwater sources and may change over time. When present it tends to deposit on fixtures and inside plumbing rather than only affecting flavor, so stains can build up in showers, tubs and on laundry—especially after exposure to heat. If you see stains coming back repeatedly in your Lewis home, it’s often a sign the source is in the water rather than a cleaning issue.
The most effective single-filter option for reducing manganese staining in the whole house is an oxidation-and-filtration media tank installed at the point of entry. That system oxidizes dissolved manganese so the media can trap it, removing the contaminant before water reaches bathrooms, appliances and laundry. Installed for Lewis homeowners, it prevents the ongoing cycle of buildup and cleaning by addressing the source of the discoloration rather than just hiding it.
Oxidation media filters are usually paired with an automatic control valve that periodically backwashes the tank to flush out captured particles and maintain performance. This keeps the system working reliably as manganese concentrations and household water use change. Because manganese’s behavior can shift with pH and when mixed with iron or other minerals, correct sizing and media choice matter; Mr. Pure Water can design the right whole-house setup for Lewis homes so staining is reduced at every tap.