Bad weld caused San Bruno pipeline explosion?
 

On Sat, 11 Sep 2010 14:08:39 -0500, Ignoramus1469
wrote:

I am looking at this piece of pipe:

http://www.csmonitor.com/USA/2010/09...tions-underway

and the clean end suggests to me that the entire weld failed. What do
our resident pipe weldors say? Steve? Private?

Couldn't have been a bad weld. This was around San Fran so there is no
way the welder could have be using DC "straight" polarity. (That's a
joke...get it?)

But seriously: The possibility of sabotage exists. They have an
amazing number of nuts out there in Cali.
Dave