The filter system consists of two reinforced polypropylene housings with a combination of two pleated or two polypropylene depth type sediment removal cartridges followed by activated carbon cartridges for taste and odour removal.
This couples with the ultraviolet disinfection system for safe and simple control of bacteria and other organisms.
Rain water collection and storage is typical in many rural households with delivery to usage via a pressure pump. The quality of water in terms of mineral/chemical content is naturally good, however there is always potential for biological contamination.
Faecal matter due to birds, possums etc., on exposed roofs and guttering are likely to contain pathogenic organisms. If tested, this water would be reported as containing "faecal coliforms" and this is totally unacceptable for a domestic supply. The most effiecient method for treating this is filtration followed by ultraviolet disinfection.