How often should I change my cartridge?

In order for water filters to perform as represented and to provide the best quality water possible, it is essential that filters be replaced periodically. We recommend replacing your filter cartridge when capacity is reached or at least once a year. The frequency of filter changes depends upon your water quality and your water usage. For example, if there is a lot of sediment and/or particles in your water, then you will have to change your filters more frequently than someone does with little to no sediment. Be sure to replace your filters whenever you notice a decline in the performance, whether it is a drop in flow rate and/or pressure or an unusual taste in the water.