I found a really good deal on 20 gallon stainless stock pots at a kitchen supply store that imports products straight out of china. I'm planning on drilling holes for ball valves and thermometers on three of these things for a HLT, mash tun and BK. What I'm concerned about is these things are pretty thin. I tried to get some structural info from the employees but because I can't speak chinese they couldn't really understand my questions. I'm assuming that they don't have a tri-clad steel aluminum steel bottom, so what I'm wondering is, will this be an issue? I'm going to be recirculating my wort so I think that should help, but from what I understand the best recirculation rate is pretty slow so if the bottom of the pot is comprised of a thin gauged steel could I still be at risk of scorching my wort????