It may be more cost-effective than owning and maintaining equipment, even over a long term when water use is low. Virtually all water treatment equipment requires maintenance and service. The more treatment equipment you have, the greater the responsibility. In recent years, manufacturers have been offering more automated and self-monitoring features to help the busy owner with the responsibility of operating and maintaining the equipment. Unless you are unusually dedicated, the automated and self-monitoring features or dealer's service agreement are recommended to ensure good operation.
Many systems require periodic cleaning or replacement of components, such as filter cartridges.
Almost all water treatment devices require some monitoring or testing to evaluate and ensure proper operation. As the owner or user of a home water treatment device, monitoring to ensure proper operation is your responsibility. This usually requires special equipment. Manufacturers frequently offer monitoring equipment either as part of the package or as an option. Ask questions about what test you need to do, what test equipment you need, and if it is part of the treatment package.