PREVENTING WATER DAMAGE TO YOUR CAMERA The rubber seal that lines the Standard Backdoor forms a waterproof barrier that protects your HERO in wet conditions. Keep the Standard Backdoor’s rubber seal clean. A single hair or grain of sand can cause a leak and damage your camera. After every use in saltwater, close the Standard Backdoor tightly, and then rinse the outside of the camera housing with non-salt water and dry. Not doing this can eventually cause corrosion of the hinge pin and salt buildup in the seal, which can cause failure. To clean the seal, remove it from the backdoor, rinse it in freshwater, and shake dry (drying with a cloth may cause lint to compromise the seal. Re-install the seal into the grooves in the Standard Backdoor.