Check out our 3 minute installation video here:
aF4 Tubing Replacement Instructions

Tools Required:

• Phillips head screwdriver

• Hex wrench (for pump)

• Replacement tubing (available at indaquatics.com)

1. Remove the Housing

1. Power Off & Unplug — Turn off the aF4 and disconnect it from the power source.

2. Remove Housing Screws — Using a Phillips head screwdriver, remove the four screws in the corners of the base-plate securing the housing.

3. Lift Off Housing — Carefully lift the housing away and set it aside.

2. Remove Old Tubing

1. Locate Tubing Connections — Identify where the tubing runs from the solenoid manifold.  There are two vertical connections and one horizontal.

2. Detach Tubing — Gently pull the tubing from all fittings, twisting slightly if needed to release.  Note: A small flathead screwdriver could be useful to get the tubing loose.

3. Remove Pump Face Plate and Pump Tubing

1. Access Pump — Locate the pump.

2. Remove Face Plate — Using the hex wrench, remove the four screws securing the pump face plate.

3. Remove Pump Tubing — Pull the old tubing out of the pump assembly.

4. Install New Tubing

1. Install Pump Tubing — Insert the new tubing into the pump, ensuring proper alignment and secure seating.

2. Reinstall Pump Face Plate — Use the hex wrench to secure the face plate back onto the pump.

3. Reconnect Tubing Runs — Attach the new tubing to all connection points, routing it in the original configuration with no kinks or sharp bends.

5. Reassemble the aF4

1. Reinstall Housing — Place the housing back onto the unit and secure it with the Phillips head screws.

2. Verify Fit — Ensure all panels are properly aligned and seated.

6. Test & Clean

1. Reconnect Power — Plug in the aF4 and turn it on.

2. Run a Test Feed — Confirm proper operation and check all connections for leaks.

3. Run a Cleaning Cycle — Perform a full cleaning cycle to ensure the new tubing is flushed and ready for use.