wrote

I just used my adjustable wrench, closed down to the outside dia of
the pipe to push in the collar to release - I won't loose it as fast
as the special tool, and I already own several. (as well as a 5/8"
open end wrench that would also do the job))

I figgered as much, but I was up against a time deadline, and I did not want
to be making trips up and down the mountain, so I just grabbed one.

Steve