I seem to be able to find new and different ways to mess up my brewing equipment. Thiis afternoon, during the recirculating mash, my nose altered me that there was trouble in river city. It seems an air bubble had interrupted the flow of wort, and the RIMS tube caked itself with the burned remnants of my wort. The tube is approx. 2 " stainless steel, with a try clover fitting in the middle, and a typical 120 volt electric heating element. I tried recirculating a strong brewery cleaner, but it didn't do much. I would prefer a chemical solution, however barring that I guess I will have to take this thing all apart, I can abrade the electric element to get it clean, but how do I clean the inside of the stainless steel tube. Grrrr.