1. If the water source is suspected to carry much physical dirt or sediment, it is recommended to
install a pre filter prior to the carbon cartridge (as shown above) to enhance the life of the carbon
cartridge. Otherwise dirt may clog the cartridge before the media has been used completely.
2. The pressure loss through the filter at normal flow rates is usually less than 5 PSI (35 KPA) so
most households will not notice any significant pressure reduction until the pre-filter cartridge
3. Cartridges like that shown in the medium house option will generally last around 20 to 24 months, depending on the amount of use and quality of the source water.
4. Cartridges are replaced when either bad taste and odour is noted or the water flow slows down
due to the cartridge blocking up with sediment.
Note: Maximum flow rate refers to the maximum recommended speed through the filter for the water to
be purified well. It does NOT mean the water is physically restricted to this speed.