Now for the next question: Do you put ammo inside them?
And if so, what do you use to suck up unwanted moisture, or is that even an issue once it's underground? How about canned goods? I'd think the seams might rust out...
We have construction around us so I'm now officially on patrol for PVC!
I usually turn the dehumidifier on in the packing room a couple hours before packing and sealing. That has worked well for me.