Spare Valves
DAN-FENDER is only using HIGH QUALITY valve systems, and all small and medium fenders & buoys are supplied with a replaceable metal-valve.
If a fender is losing air, it might be because the valve by accident (incorrect inflation) has been pushed into the fender or the valve itself is leaking (does not happen very often), but no matter what, the DAN-FENDER metal-valve can easily be replaced with a new one!
See following video demonstrating how the valve easily can be replaced:
PDF guide: