Still have the original SOSpenders that I keep the pellets (saline tablets) replaced on a two year cycle. Check the cylinder end for holes/cracks when doing so. Bought my kits from an Amazon seller in Washington state. You can look at mine to see the condition of the pellet, how much green is still showing etc. One of mine did inflate while in the rod locker of my bass boat. Summer humidity and due to illness the locker was not opened up/used. You can look up 're-arm kits' for whatever brand you have. I found plenty of resources. About 30 bucks for the whole kit.