i think iv forgotten how to weld !!
either that or theres some mystical art to (mig) welding a tank and making it leak free that i'v not come across before !
whats the trick ??
iv got an old air tank off a truck to use as a fuel tank and it needed each end capping off, have done that but i cant for the life of me stop it leaking from the welds, iv ground it down and re-welded a couple of times now but all i seem to do is manage to move the leak further round the tank - stupid bloody thing !!
what am i doing wrong or is it time to borrow some kit and just gas weld it ?