My son is going on a 2 day float trip at the beginning of June. Any ideas for keeping his pump dry? He was thinking of enclosing it in ziplock bags. Also, he is concerned that if his canoe overturns, his site might pull out, leaving him with a pump that is not only submerged but lost in the river. So, he is looking for ways to tether the pump to his body. It should be a fun trip. His Dad and several uncles are going. Everyone is an adult and aware that he has a pump, so nobody will be trying to tip over his canoe on purpose; he is just considering things that could go wrong. Thanks for any suggestions!