I found a company here that will sandblast the inside of TWO drums for me, for $50 total. From ALL the research I've done, this is the only way to go when it comes to the "dreaded red liner" I have in my food grade drums! I attacked the liner on the drum LID last night with my weed burner, and I could hear the red liner laughing at me... If it's going to be that hard to clean the lid - I'm not interested in trying the drums! Question # 1: What can I use to seal up the hole where I want to run my remote temp. probe wires? I plan to drill a 3/16" - 1/4" hole for my Maverick temp. probes, but I don't want any air leaking in at that point. I'd like an idea that is permanent - as opposed to just jamming some tin foil in there. Anyone have any sort of idea for a gasket in that hole? Question #2: I'm building oneUDS for me and one for my dad for Christmas. For his, I just want to install a high quality temp. dial gauge - as he won't be interested in buying the Maverick remote gauge....at least not at first. What do you recommend I buy and install as far as the size and the brand of temp gauge? I know there are a lot of them out there, but I want a good and accurate one. I'm planning to install it RIGHT below the inside cooking grate. Thanks!