Does your RO add pure minerals or mix in contaminants again?
Most RO systems reduce TDS (Total Dissolved Solids) to near zero, removing both contaminants and essential minerals. To fix taste, many use M-TDS (Manually Total Dissolved Salts Controller) valves that mix dirty water back in, raising TDS but reintroducing impurities. Choose systems that add pure minerals post-filtration, not recycled contaminants.