In Reply to: Re: Best fuel sediment bowl posted by Rustyal on June 19, 2019 at 07:21:55:
A drop of locktite is the more professional solution to the knob falling off and getting lost. I didn't have any handy when faced with the same problem, so I used a pair of pliers to mess with a couple threads about half-way on the screw. Flattened the threads just enough that I could feel the bad spot engage as the screw went in. That homemade "locking" screw has been in there for many years now.