re-welding a keggle

i had a friend come by and weld the fittings on my keggle. when he was done i had some small leaks. he is unable to finish the job.
can i just bring it to a welding place to finish, or even like a muffler place? or does it have to be done some special way since it will be boiling my beer?

Don't take it to a muffler shop.
Do you know what type of welding your friend did? tig, mig, or stick?
Try to find a specialty welding shop. Someone who is a tig welder.
Where do you live?
I am in Alabama.
If you are close I would fix it for you for next to nothing. I still enjoy welding, and like to do projects like that. I made my keggle electric with a drain and temp gauge.
If there were enough people on this forum interested I would weld their keggles for them. I guess the only drawback would be shipping back and forth.

try to have someone with back purging experiance fix it

look up welding in your area on google. Then just call them and ask.
Good luck... Brost!