Had to repair the gas dryer vent tubing.
Originally the vent tube was the slinky type of aluminum. it got clogged up easily with lint, tripping the dryer fuse. Replacing that thing cost $15-20. way to much. So I put metal piping in place of the slinky. had two adjustable elbows to make the bends, hinky dory. Only I pushed the dryer in a bit too far once, and snapped an elbow. Metal tape and pop rivets have been holding it.
About a month ago I saw an adjustable elbow on the curb, turned around and got it. Planned on replacing the broke one, decided to replace the old gas flex and add a proper valve while I was at it.
Today was the day! Only the plumbing shop didn't have the gas cock I wanted. Said they haven't had them in a long time (probably COVID excuse) and only had 3 of the other ones! So I decided to use one I had left over from the business. $27 for the 36" gas flex. geez!
Had to turn off the gas while I did the repair, blew out the vent tubing and cap on the roof. Then couldn't get the water heater relit. One of the piezio sparkers - couldn't see it through the dime sized observation port. Removed the burner assembly, figured might as well replace the thermocouple while I'm at it. Put it all back together - new thermocouple nut won't thread into the bottom of the WH gas valve. Because it's left hand thread!!!
What to do. The Mrs. not having hot water for showers will not make for a happy home. I macgyvered the original left hand nut, cut a groove in it so it would slide over the new thermocouple lead, and secured it that way. It looks a little hinky with two nuts on the lead, but it worked! So the wife's comfort is assured - and my hearing is undamaged.
Who the heck puts left hand threads on valve thermocouples? Sounds like a shaft the technician idea to me.