Watch this video to learn easy method to install replacement rubber band on trigger for Bigfoot Water Rocket Launcher. Parts needed: New Rubber band, wire hook, string, and pencil. Video is 2:20 minutes.
The black rubber band in the trigger powers the trigger to launch the water rocket. It is custom made of quality EPDM for h2orocket.com. It is an exceptional long lasting rubber band, unlike commonly available latex.
Someday it could wear out, and this video provides a quick and easy method to replacing the rubber band.