Pre-chlorination - Many water treatment plants used to chlorinate their incoming water supplies to stop contamination and fouling inside the storage and remedy infrastructure. This apply is now less widespread because of the potential hostile effects of early chlorination on water high quality. H adjustment - Purified water is neither acidic nor alkaline and has a impartial pH value of round 7. Acidic water can have its pH boosted to neutral with the usage of soda ash, lime, or sodium hydroxide. This is a crucial pre-remedy because it makes the subsequent stage of therapy - coagulation and flocculation - more effective and reduces lead leaching from water transportation pipes.

The most typical use of adsorptive filters is to enhance water quality by eradicating contaminants affecting taste and odor, like chlorine. Adsorptive filters are most commonly found in family drinking water filters and fish tank filters. The filters should be changed frequently to forestall bacteria buildup in the filter media.