The main purpose of filtering your water is to make it microbiologically safe to drink, cook with, and bathe in.
The Ministry of Health recommends a two-barrier approach to this – namely, filtration followed by disinfection. Although we can provide a number of solutions that suit your requirements, the simplest solution is for cartridge filtration followed by ultraviolet disinfection.
Filtration is based on a micron rating, and is most commonly achieved with coarse pre-filtration, usually with a 20 micron washable, pleated cartridge for the bulk of suspended solids removal, followed by a fine depth filter of one micron. This step is most important for the removal of giardia and cryptosporidium cysts, by trapping them in the filter.