We used to repair aluminum pots with aluminum rivets, just drill for the rivet and set it firmly with a ball peen hammer and a large bolt as the backing bar. I've still got a good selection of aircraft rivets if you want to do it that way.. Let me know.
If it's aluminum, just take it to a place with a TIG welder and have them pop a bead on the back side. Might turn into a mess depending on the base material but I bet they could fix that!
I wouldn't trust repairing a pressure canner at all !
Also... why would you be using salts in a canner? The All American will last you a life time and then some. Instructions state that you should "lube" up the rim of the lid to help with the seal. I can a crap load of stuff and for years and have had zero problems with the All american.
good to know about the all American.
Salts are sometimes used when cooking meat and veggies in the canner for a quick dinner.
I have only used salts a couple times when cooking a big chunk of meat I just cut off the animal
I just got one of those. I'll not use it for canning because it has no pressure gauge, but it is an awesome machine. The first thing I cooked in it was a 2lb roast and I filled the dang thing up with potatoes, carrots, onion and celery. About 1 hour total cook time. Ditto for a huge pot of stew. I did the best beef and noodles I've ever had in it. Beans are next.