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Whole House Filtration

How Often Should a Whole House Water Filter Be Replaced?

There's no universal answer — but there is a smart way to know when it's time. Here's how to think about filter replacement.

H2OGeneration H2OSeptember 26, 2026
Replacing a whole house water filter cartridge

Why There's No Universal Schedule

Filter lifespan depends on how much water your home uses and how much the filter is removing. A home with heavy sediment will clog a filter faster than one with cleaner water. That's why a replacement schedule should be based on your water, not a generic timeline.

General Guidelines

  • Carbon cartridges: typically 6–12 months
  • Sediment pre-filters: 3–6 months in high-sediment homes
  • Specialty media: varies by type and water conditions

Signs It's Time

  • Noticeable drop in water pressure
  • Chlorine taste or odor returning
  • Reaching your scheduled replacement date

Need a replacement? See our filter replacement service — whether we installed your system or not.

Frequently Asked Questions

Most whole house filter cartridges last 6–12 months depending on your water quality and usage. Homes with heavier sediment may need more frequent changes. We set up a schedule based on your actual water test.

Not Sure What’s In Your Water?

Schedule a free in-home water test with Generation H2O. We’ll test your water, explain what we find, recommend the appropriate solution if one is needed, and provide clear pricing before you decide.

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