Tony Hwang wrote:

John Gilmer wrote:

normal gas line pressure is only a couple psi.



If that!

Gas pressure is usually measured in "Inches of Water."

30' of water is about 15 psi. 1 psi is about 2' or 24" of water.




** Posted from http://www.teranews.com **

Hi,
Are you sure 1 psi = 2 feet of water column?


Close enuf.
http://www.iprocessmart.com/techsmart/pressure_help.htm

An easy way to remember it is: "half a pound per foot..."

Jim