Is anyone else having the same problems as me. I've now had two weber regulators go bad due to the plastic knob that screws into the tank crack. They used to be made out of metal but for the last number of yrs, the knob is plastic. I now need to buy another regulator, hose and related parts for about $25 just b/c of a cracked knob. I'm not over tightening, they just get old, dry and split. I also lost all of my gas on one of the tanks