No filter will give you good performance over the long term unless it receives regular maintenance.

As contaminants build up, a filter can not only become less effective, but actually can make your water worse, by starting to release harmful bacteria or chemicals back into your filtered water.

To keep your filter working properly, follow the manufacturer's maintenance directions.

Some filters only require a cartridge change, while others are better maintained by a certified professional.

Many filter distributors offer maintenance and service contracts for their products. Before buying any water treatment system, compare not only filter prices, but also operating and maintenance costs for the different units.