I made three large 10" PVC tubes 32" Long, I glued the cap on one end and on the other end I glued a female adapter so I could install a screw in cap which I used Teflon tape to ensure pvc pipe would remain air tite and waterproof. I put all Silver and gold in separate sealed containers mostly glass mason jars but did use some large pickle jars as well. I put two big bags of Moisture absorbent Desiccant in each PVC tube along with a capsule to keep corrosion down for all metals. Been in the ground for well better than a year. I recently opened them up to add what silver and gold I had purchased since burying them and they looked just like they did when I buried them. I feel putting them in secondary containers in PVC tubes helped a lot. I have three of them completely full and getting ready to build two more out of the pipe I have left, I have between 2,000 to 3,000 Oz's in the tubes and running out of room again? In my opinion this is the only way to go!!! Good luck my friend!!
I made three large 10" PVC tubes 32" Long, I glued the cap on one end and on the other end I glued a female adapter so I could install a screw in cap which I used Teflon tape to ensure pvc pipe would remain air tite and waterproof. I put all Silver and gold in separate sealed containers mostly glass mason jars but did use some large pickle jars as well. I put two big bags of Moisture absorbent Desiccant in each PVC tube along with a capsule to keep corrosion down for all metals. Been in the ground for well better than a year. I recently opened them up to add what silver and gold I had purchased since burying them and they looked just like they did when I buried them. I feel putting them in secondary containers in PVC tubes helped a lot. I have three of them completely full and getting ready to build two more out of the pipe I have left, I have between 2,000 to 3,000 Oz's in the tubes and running out of room again? In my opinion this is the only way to go!!! Good luck my friend!!