Step 1. First, you need to deflate the inflatable paddle. Next, Remove the repair kit from the accessories kit and then remove the wrench.
Step 2. Fix the wrench at the correct position of the air valve, and loosen the air valve anticlockwise. Take the air valve out, please kindly noted the air valve foundation is not needed to take out.
Step 3. Align the air valve foundation with the air valve port and clear the fibers of the drop stitch fabric covering the foundation. Finally, fix the new air valve on the foundation, then fix the wrench on the air valve position and tighten it clockwise.