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Posted by Vern on March 09, 2002 at 20:28:35:
In Reply to: insight on the pros and cons of pad welds verses dutchman posted by John Ray on March 08, 2002 at 14:15:53:
: We can only plug so many tubes, but are leary of pad welding the leaks with a MIG. How well does this work?
If you are having that many leaks, sounds to me like your chemical program isn't working properly.
When I worked on boilers here in California, plugging tubes was permitted as a temporary measure,tube to be replaced at the earliest
opportunity. I never saw any leaks we could simply weld over with a MIG, we usually had to cut out a section of tube and replace it
with a good section of tube, then hydro to 1.5 max working pressure. Vern