parrothead600
Contributor
My daughter & I have gotten 'tank bangers' (the plastic ball on a bungee band that goes around the tank) as a means of attracting each others attention. Unfortunatly, we can't hear them while we are underwater. We both wear 5mm hoods, which muffle any sounds. We can hear each others air bubbles if we are within 15' of each other, but we can't hear each others 'bangers'. Has anyone else had this problem? Do these things work with alluminum tanks?