Hi all, Long time since I have posted anything, but I hope to get back in the swing of things as the weather gets nicer. To get going again, I need to do some work to the UDS. I know there is some rust on it, which will be easy enough to knock off and repaint; however, the hard part is one of the intakes (nipple) is rusted. I cannot take the cap off. Any suggestions for loosening that thing up? Also, while my UDS is not the epitome of craftsmanship, it does the job just fine. However, despite everything not being airtight, I sometimes have trouble keeping temps up (I will extend the charcoal basket even more, but it is about 3 inches off the ground now). I was wondering if I am not getting enough pull from the bunge hole being open, so I was going to install a chimney. Is there a size exhaust I can fit in the hole that already exists in the lid? Thanks for the help!