When water filters are installed, all water that the refrigerator uses must flow through them first, which lowers the pressure of the water from the perspective of the user, who is used to the ordinary pressure in his home from faucets. Practically, the lower pressure means that it takes longer to fill up a cup at the water dispenser, which some owners may find annoying.
As water filters grow old, they can become clogged with the debris they are preventing from passing through in the dispenser and ice maker. Not only does this lower the water pressure even more, but it can also divert some of the water flow and make it easier for the dispenser to leak.
Not only can old filters make leaks more likely, but they can also cause contamination problems. As more and more debris builds up in the filter, it can become an environment friendly to bacteria and molds. As a result, the filter becomes less effective at the same time it encourages contaminant particles, doing the opposite of what was originally intended.
If you have a refrigerator with a water filter, you should replace the filter once or twice a year. Unfortunately, few people are aware of their water filters, and even fewer make sure that their filters are regularly replaced. With the many different models of refrigerators available, finding the right filter for your model may not be easy. You may have to order new filters directly from the manufacturer, which can add transportation costs to your purchase.