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Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement

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Use this guide to replace the 20-inch sediment pre-filter for your Aquasana F-300R 300,000-gallon whole house water filtration system.

The sediment pre-filter keeps rust, dirt, and sediment particles from entering the main filter unit.

After 2-3 months of use (when the pre-filter darkens or water flow slows), the sediment pre-filter must be replaced. When this pre-filter is not replaced in a timely manner, water pressure can drop, and sediment particles can enter and clog the main filter tank.

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  1. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement, 20-inch Sediment Pre-Filter: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement, 20-inch Sediment Pre-Filter: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Turn off the water supply by turning the water valve(s) to be horizontal, or perpendicular to the water pipe.

    • You may have one or two valves depending on the installation of your system.

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  2. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Press the black pressure release button on top of the filter housing.

    • Hold the button down for 5 seconds.

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  3. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Unscrew the filter housing canister clockwise with a water filter housing wrench.

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  4. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Remove the dirty pre-filter and dispose of it.

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  5. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:05crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:05crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

    • Wash the filter housing canister with dish soap and water.

    • You may need a long-handled cleaning brush to scrub off dirt and debris.

    • Rinse and dry the filter housing canister.

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  7. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Remove the O-ring from the housing canister.

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  8. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Clean off old grease on the O-ring with a towel.

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  9. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:08crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:08crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Replace the O-ring.

    • Apply Vaseline or lube around the seal.

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  10. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:09crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:09crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Place the new pre-filter in the center of the filter housing canister.

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  11. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:010crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:010crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Screw the filter housing canister counter-clockwise with your hands.

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  12. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:011crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Tighten the filter housing canister with the filter wrench.

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  13. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:012crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:012crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Turn on the water supply by turning the water valve(s) to be vertical, or parallel to the water pipe.

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  14. Aquasana F-300R 300,000 Gallon Whole House Water Filtration System 20-Inch Sediment Pre-Filter Replacement: crwdns2935265:013crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Run water in a sink or tub for 1-2 minutes to flush out the system and remove any air in the pipes.

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Repeat steps every 2-3 months for best results.

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Kathryn Hall

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University of North Texas, Team 1-8, Friess Fall 2022 crwdns2935289:0University of North Texas, Team 1-8, Friess Fall 2022crwdne2935289:0

UNT-FRIESS-F22S1G8

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