1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your AFWFilters 2-Stage 20 Inch Whole House Water Filter System. This system is designed to reduce scale, chemicals, taste, and odor from your household water supply, providing filtered water throughout your home. Please read this manual thoroughly before installation and operation to ensure proper function and safety.
Image 1: AFWFilters 2-Stage Whole House Water Filter System. This image shows the two filter housings connected, indicating a multi-stage filtration setup.
2. Safety Information
- Always turn off the main water supply before installing or servicing the filter system.
- Relieve water pressure in the system before opening filter housings.
- Use appropriate plumbing tools and materials. Ensure all connections are secure to prevent leaks.
- Do not install the system where it will be exposed to freezing temperatures. Freezing can damage the filter housings and cause leaks.
- Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
- Ensure the system is installed in an accessible location for future maintenance.
3. Package Contents
Verify that all components are present before beginning installation:
- 20-inch Filter Housings (2 units)
- Mounting Bracket
- Housing Wrench
- Sediment Filter (1st Stage)
- Radial Flow Carbon & Phosphate Filter (2nd Stage)
- Mounting Screws
- Instruction Manual (this document)
4. Setup and Installation
Proper installation is crucial for the performance and longevity of your whole house water filter system. It is recommended to install the system after the main water shut-off valve and before the water heater.
4.1 Pre-Installation Steps
- Choose Location: Select a suitable location that is protected from freezing temperatures, direct sunlight, and is easily accessible for filter changes.
- Turn Off Water: Locate your main water shut-off valve and turn off the water supply to your home.
- Relieve Pressure: Open a faucet in your home to drain water and relieve pressure in the pipes.
- Gather Tools: You will need a pipe cutter, thread sealant tape, adjustable wrenches, and a drill.
4.2 Mounting the System
- Assemble the filter housings to the mounting bracket using the provided screws.
- Hold the assembled system against the wall at the desired installation height. Mark the drilling locations for the mounting screws.
- Drill pilot holes and secure the system to the wall using the mounting screws. Ensure it is level and firmly attached.
4.3 Plumbing Connections
- Cut into your main water line at the chosen installation point.
- Install appropriate fittings (not included) to connect the main water line to the inlet and outlet ports of the filter system. Ensure the water flow direction matches the arrows on the filter head.
- Apply thread sealant tape to all threaded connections to prevent leaks.
- Tighten all connections securely, but do not overtighten.
4.4 Filter Installation
- Unscrew the filter housings using the provided housing wrench.
- Remove any packaging from the filters.
- Insert the Sediment Filter into the first housing (inlet side).
- Insert the Radial Flow Carbon & Phosphate Filter into the second housing (outlet side).
- Ensure the O-rings are properly seated in the housing grooves. Lubricate O-rings with a small amount of silicone grease if necessary.
- Screw the housings back onto the filter head by hand until snug, then use the wrench for a final quarter-turn to ensure a watertight seal.
5. Operating Instructions
5.1 Initial Startup and Flushing
- With the main water supply still off, slowly open a cold water faucet in your home to allow air to escape.
- Slowly turn on the main water supply valve, allowing the filter housings to fill with water. You will hear air escaping from the open faucet.
- Once water flows steadily from the open faucet, close it.
- Flush the system by running cold water from a utility sink or outdoor spigot for at least 10-15 minutes. This removes any carbon fines or air from the new filters. The water may appear cloudy initially; this is normal.
- Check all connections for leaks. If leaks are present, turn off the water, relieve pressure, and tighten the connections.
5.2 Normal Operation
Once flushed, your AFWFilters 2-Stage 20 Inch Whole House Water Filter System is ready for normal use. The system operates passively, filtering all water entering your home. No further user interaction is required until filter replacement is needed.
6. Maintenance
Regular filter replacement is essential to maintain optimal water quality and system performance.
6.1 Filter Replacement Schedule
- Sediment Filter: Replace every 3-6 months, or sooner if water flow significantly decreases or sediment is visible.
- Radial Flow Carbon & Phosphate Filter: Replace every 6-12 months, or sooner if taste/odor returns.
Replacement frequency may vary based on water quality and usage.
Image 2: Examples of 5 Micron Sediment, 1 Micron Sediment, and 5 Micron Carbon Block filters. These illustrate common filter types used in multi-stage systems.
Image 3: Examples of Bone Char Carbon, Lead Filter, and KDF 85 Filter. These represent specialized filter options that may be used in certain applications.
6.2 Replacing Filters
- Turn Off Water: Turn off the main water supply to your home.
- Relieve Pressure: Open a cold water faucet to drain water and relieve pressure in the system.
- Unscrew Housings: Place a bucket under the filter housings to catch any spilled water. Use the housing wrench to unscrew the filter housings.
- Remove Old Filters: Discard the old filters.
- Clean Housings: Clean the inside of the filter housings with warm, soapy water. Rinse thoroughly.
- Inspect O-rings: Inspect the O-rings for cracks or damage. Replace if necessary. Lubricate O-rings with food-grade silicone grease.
- Install New Filters: Insert the new Sediment Filter into the first housing and the new Radial Flow Carbon & Phosphate Filter into the second housing. Ensure they are centered.
- Reassemble Housings: Screw the housings back onto the filter head by hand until snug, then use the wrench for a final quarter-turn. Do not overtighten.
- Restore Water Supply: Slowly turn on the main water supply.
- Flush System: Flush the system as described in Section 5.1 to remove air and carbon fines.
- Check for Leaks: Inspect all connections for leaks.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Low Water Pressure | Clogged filters; Air in system; Incorrect installation. | Replace filters; Flush system to remove air; Verify correct installation and flow direction. |
| Water Leaks | Loose connections; Damaged O-rings; Cracked housing. | Tighten connections; Replace O-rings; Replace damaged housing. |
| Poor Taste/Odor | Spent carbon filter; Incorrect filter type. | Replace carbon filter; Ensure correct filter type is installed for specific contaminants. |
| Cloudy Water After Filter Change | Air in system; Carbon fines from new filter. | Flush system thoroughly until water runs clear. This is normal for new carbon filters. |
8. Specifications
- Model Number: CF1-4520-PORF
- Manufacturer Part Number: CF2-4520-PORF
- System Type: 2-Stage Whole House Water Filter System
- Filter Size: 20 inches
- First Stage Filter: Sediment Filter (typically 5 micron)
- Second Stage Filter: Radial Flow Carbon & Phosphate Filter
- Material: Carbon (for filter media)
- Item Weight: Approximately 16 ounces (filter media)
- Country of Origin: United States
- UPC: 755918586510
9. Warranty and Support
AFWFilters products are manufactured to high-quality standards. For specific warranty details, please refer to the warranty card included with your product or visit the official AFWFilters website. If you encounter any issues or require technical assistance, please contact AFWFilters customer support through their official channels.
Contact Information: Please refer to the AFWFilters website or product packaging for the most current customer support contact details.