wrote in message
ups.com...
I want to hook up a gas dryer to a newly installed gas line a plumber
put in for me. The line doesn't have a shut-off valve, so I was going
to shut the gas off at the main.

Big error on the part of the plumber. There MUST be a shutoff valve before
the dryer. He should have installed one before the union that connects to
the dryer. This guy was an idiot if he did not put a valve in the line.



It seems like it is pretty easy to turn off and back on...one twist of
the valve. Is there really any danger from me just turning it back on
myself?

Not really, but they get fussy about things like that. You must re-light
any pilot lights and you may have air in the lines, especially where the new
work it. Do not even think about finishing the job the plumber did half
assed with no valve. Sequence is valve, nipple, union, rest of the piping.

OTOH, do you know what a gas valve looks like? It is not a knob on top like
a water valve. How did he terminate the line? Should be plugged or capped.
How did he turn the gas back on when he finished?