I carry two tubs of StayAfloat. Not that different than a toilet ring but much more pliable. Unlike wooden plugs it
seals jagged leaks in
fiberglass or even hose splits. Long shelf life (unlike epoxy). I bought it at Defender.
Also, never hurts to add another
bilge pump. Mount it a few inches higher than your regular
pump. Hopefully it never get's wet. No need for an automatic float switch. Should have a 1.5" or 2" hose. Something like the
Rule 4000.