At Sun n Fun I questioned one of the exhaust pipe makers why the still
   welded the pipe to flange on the outside and he said they welded theirs
   both inside and outside but grind the weld smooth on the inside so you
   couldn't tell by looking at it. I asked him why because if it was going
   to crack it was still going to crack at the outside weld.  Karibian



Just because someone does something professionally doesn't mean that
they can't be ignorant of the correct way to do something.
Bill Jepson




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