What should I do to maintain my Berkey system?

Wash lower box / chamber every month with soapy dishwater. (This is NOT necessary but good to keep the unit clean) It's ok too to was the whole unit every 6-12 months when the filters are cleaned too. In areas with hard water, where calcium scale may build up on spigot & chambers after long and heavy use. To remove that, soak parts in vinegar or a mix of vinegar and water for about 15-20 minutes... Wipe away calcium scale with a dishwasher pad or soft brush then wash with soapy dishwater and rinse the whole Berkey System with warm water (Not hot water).