Maintenance Guides / Plumbing & Water

Replace UV sterilizer pre-filter

Difficulty: easyTime: 10 minsEst. Cost: $20 - $40

Why it matters

UV requires turbidity <1 NTU; sediment shadows pathogens.

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How to do it

  • 1

    Turn off water supply to UV system.

  • 2

    Locate pre-filter housing.

  • 3

    Unscrew old sediment filter cartridge.

  • 4

    Rinse filter housing.

  • 5

    Install new pre-filter cartridge.

  • 6

    Turn water back on and run 1 minute.