replying to Eric in North TX, fyou2 wrote:
The pros dont use unions because it is against code to use unions on gas pipe.
2 you should always undersize the wrench because u can over tighten the pipe
and stretch out the fitting. Unless you are working with 3 inch pipe or bigger
there is never a need for a 4 inch pipe. If there is a leak you can use a
left/right nipple and coupling to use as a breaking point. Also you cant use
tape on a gas thread except for the yellow tape because all other stuff is
flamable. Also it is only going to be about a pound of pressure in the line so
dope or rectorseal or permabond is more than enough

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