gas fitting

Hello All, If a gas union has a slight leak, is it acceptable to attempt to check tightness/tighten union ring with the gas still on? I.e. Spark concerns, etc? I assume this is an obvious NO DO NOT, don't be a fool!, but was wondering if it turns out this is not a problem. Thanks!

As part of a remodel I am replacing an older gas range. The new range has a larger diameter flex pipe and fitting than the old one and will not screw into the valve. Can I use an adapter to make it fit the old valve? Will the range still operate properly if I do? Or should I replace the...

Hey guys! Longtime lurker, first time poster. I'm in the process of teeing off a gas line for a new gas dryer in our second story mudroom / laundry room. We currently have a gas furnace in the attic and gas water heater in the garage. I bear crawled through the attic to trace the gas line from...