Quote Originally Posted by Phisher View Post
You would be correct if they were freezing the whole pipe. However this procedure calls for freezing a short section of pipe.

mlkwal1, What size line are you working on?

i am working on a 4 and 6 inch pipe., they want to change the butterfly valve
on the discharge side of the pump.,

sanman, if u THINK about it., if u have a closed loop with no play, yes the pipe would bust,
however , if u freeze a small section of a pipe, the water will freeze then expand, but only freeze that section, .,

i was thinking about this product