I just received a used corny keg, everything is good on it besides the lid. When I close the bail one of the feet does not touch the top of the keg(the other one does). There is enough clearance for a quarter to easily slide in between the foot and the keg. Comparing the feet of the lid to other lids that seal I do not see excessive wear. I tried this lid on other kegs and it does the same thing. I just placed a brand new gasket on the lid, so the problem is the bail or the feet(I'm not sure which). I hope this makes sense. Any advice on how to fix the lid?