Including filter system and high-performance Manganese Staining filter.
Manganese staining appears as dark brown or black marks on sinks, tubs, toilets, and sometimes on dishes and clothing after washing. Even if water from your Havana tap looks clear, dissolved manganese can oxidize when it meets air and leave stubborn discoloration or a metallic taste, and you may find fine sediment settling in a glass. The end result is water that’s harder to keep looking clean, even with frequent scrubbing.
Manganese is a natural mineral that can make its way into household water from groundwater sources and may vary over time in Havana. When present, it tends to act like a staining agent rather than just affecting flavor, building up on fixtures and inside plumbing. Hot water often makes the discoloration more obvious on showers, tubs, and laundry; if stains keep returning despite cleaning, that’s usually a sign the source is coming from the water itself.
The most effective single-filter solution for reducing manganese staining in the whole house is an oxidation-and-filtration media tank installed at the point of entry. This style of system oxidizes dissolved manganese so the media can trap it, stopping discolored water before it reaches Havana bathrooms, appliances, and laundry. Installed and sized correctly, it treats the water supply rather than just covering up recurring stains.
Oxidation media filters are usually paired with an automatic control valve that backwashes the tank to flush captured particles and maintain consistent performance. That backwash cycle helps the system handle changes in manganese concentration and daily water demand. Because manganese’s behavior can depend on pH and other minerals, proper sizing and media selection are important — Mr. Pure Water can evaluate Havana water and recommend the right whole-house configuration to reduce staining at every tap.