The water coming from the sedimentation tanks passes through dual media filters. The GAC aids with taste and odour removal. In the filtering operation, the partially treated water flows downward through the media and through the underdrain system to collector pipes which empty into a common chamber. From this Common Chamber, finished water flows to the clear wells. The accumulated particulates are scoured out into wash water troughs and discharged to waste.
Water is the universal solvent and therefore carries all types of dissolved materials.
Water also carries biological life forms which can cause disease. These organisms and the diseases they transmit are no longer a problem due to proper water treatment. One of the processes in water treatment is called disinfection. Disinfection is the selective destruction of pathogenic organisms. This chlorine addition prevents bacteriological growths in the plant filters, reservoir, distribution system and Elevated Tank ensuring a safe drinking supply at all times.