I have a corny with 3 small rust spots that total would be about the size of a quarter. I am new to kegging and was wondering if anyone has experience with this. When I initially got the keg about a week ago some of the rust wiped off with a paper towel but I have been soaking it now in oxyclean for a week and the rust looks unchanged but will not wipe out now.
I don't feel confident putting beer in it the way it is. I can take it back but I'm not sure if this is necessary if it's not a problem. Opinions?