Our water filtration system is different from that of our competitors because at Source Omega, we install a third filter - a softener filter - in addition to the carbon filter and the sediment filter. The following describes the importance of each filter.
The sediment filter provides nominal 1 micron filtration, which retains solid particles that may become dislodged from water pipes.
The softener filter removes metals (lead, cadmium), scale (bacteria tend to multiply in scale formations around the reservoir and faucets), and other undesirable elements and compounds (fluoride, arsenic, nitrates and TCE – trichloroethylene).
The carbon filter eliminates 99.9% of the chlorine, which is responsible for the unpleasant taste and odour in water. This filter is NSF-approved by the National Sanitation Foundation (equivalent to a U/L or CSA approval for electrical appliances).
The main purpose of the softener filter is to retain the calcium found in water. We usually recommend that this filter be changed every four months. Otherwise, limestone deposits collect and act as insulation. This in turn, causes the refrigeration components to work harder and less efficiently, resulting in damaged parts. Limestone is also the ideal place for bacterial proliferation.
Below are two photographs of a unit purchased in 2010. The client had refused maintenance of his unit (cleaning and filter change). After only two years, there are very obvious deposits of limestone at the base of his faucet and bubbler.
The function of the other two filters is to maintain good water quality by retaining particles in suspension (sediment filter), and eliminating the taste and odour of chlorine (carbon filter). To avoid bacterial growth, all three filters should be changed at least once a year, depending on the water source, or following a municipal notice to boil water.