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Old 03-23-2013, 08:22 PM   #1
Got Wood.
Join Date: 12-31-12
Location: CA
Default Building a UDS, how do I know if a closed drum is unlined?

There is a steel shop near by that has 2 closed - unlined - food grade drums for $20 that previously had corn oil inside, he also stated there was no rust inhibitor on the inside.

How does he know this if it is closed? More importantly, how do I know this, is there some sort of mark I can check on the bottom of the drum or something?

I am trying to avoid a 4 hour drive to get a new one and a burnout as much as possible.
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