How often should I perform water filtration system maintenance?

Perform water filtration system maintenance at least once a year, and replace filters on the manufacturer’s schedule based on your water quality and household use. Most maintenance is driven by filters loading with sediment and chemicals or, for reverse osmosis, membranes slowly fouling from minerals and chlorine. Our plumbers service systems throughout Chicago’s North Shore, and we find a simple annual check keeps performance steady and prevents surprises.

Consider these practical cues and tasks:

• Replace sediment or scale pre-filters if water pressure drops or cartridges discolor.
• Change carbon media when chlorine taste or odor returns.
• Follow RO stage timelines and sanitize the RO tank annually.
• After any cartridge change, test water and check housings and bypass valves for leaks.

If you don’t know the last service date, start with a professional inspection and a free water test to set a safe baseline.

Updated: 2026-06-20

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