The only regular maintenance required is monitoring water quality. As with a pool or spa, it's helpful to have your water pH, alkalinity, phosphorus, and other levels checked twice a month.
Filtered Forges will maintain clear, clean water for months (if not years, depending on usage) between filter changes. We recommend the Hayward C225 replacement cartridge when it is time to change your filter.
Unfiltered Forges require regular water changes to maintain water quality.