Having an ice maker installed in the freezer can be very convenient, not to mention minimize your level of irritation on a hot sunny day. So how does the ice maker work? Basically, a filtered water line is connected from the kitchen cold water supply line to the refrigerator. The filter will not only cleans the water but gives you a continuous supply of great tasting ice. The filter should be changed once a year or every six months for best tasting water. The filter and storage tank are kept under the sink. You can also connect a water filtration system which runs the filtered water to the faucet where you can have clean tasting water directly from the faucet.