When water is filtered through our system, the Black Berkey Purification Elements may increase the pH level of the water between 0.5-1.0. The majority of contaminants are generally acidic in nature. When they are removed, this causes a slight increase in pH. This is healthful because pathogenic bacteria and viruses have difficulty surviving in alkaline environments. An environment with more alkalinity does have a higher pH level. The pH level will depend on various factors including what the pH level of the pre-filtered water is.
Check out our article for a more detailed explanation on how Berkey effects the pH of you water: https://www.berkeyfilters.com/pages/berkey-water-filters-ph-level-alkaline