Don Bruder wrote:

Additionally, acetylene cylinder are *NOT* hollow cylinders, ......

Unlike oxygen or other tanked gasses, filling an acetylene cylinder is a
fairly time-intensive task ......
want *THE SAME CYLINDER* back, you're going to have to wait for a while.....

Don,

snipped fascinating post - thanks for that


Its no wonder acetylene is getting expensive. How much of a performance
hit is using oxy-propane instead ?

Steve