Originally Posted by freqz
I have a line on barrels that have had barite (water based drilling) mud in them. Would a trip through the car wash and a good burn in make these acceptable or should I keep looking?
I think you'd be fine with these drums, although there may be a clear sealer sprayed on the inside of them. After washing and burning, I'd take some very coarse sandpaper or a grinder to a small section on the inside. Put some water in and loosely put the cover on the drum for a few days.
Open it up and look for rust. If it's only on the sanded/ground area, you['ve got more work ahead of you.