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I need to turn off the gas to to the house to do a repair of an appliance without its own valve. It seems stuck as I cannot turn it with a crescent wrench.

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For future reference: get a piece of pipe large enough to slip over the handle of the wrench, as long as will fit in your space, to increase the leverage. We call them "persuaders".

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After another attempt, I succeeded. I reoriented the crescent wrench in the opposite direction (concave side away from me) and pulled towards me. I believe this gave me more leverage is it was significantly easier to turn.

Other ideas that I ended up not trying but may help as well:

  1. Getting an extra large crescent wrench (expensive).
  2. Getting a tool with linear slot that fits over the valve's knob which appears to be created for opening valves.
  3. (Rob's suggestion) As the valve is located outdoors, there was a bit of rust or dirt that can add friction to the valve. Using PB Blaster or Liquid Wrench can help loosen things up. (NB: please check if this is safe)
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    you don't mention the state of the valve but if it's outside and been sitting a long time, it might be rusty. Next time a penetrating oil like PB Blaster or Liquid Wrench might help. – Rob Elliott Nov 12 '18 at 18:42
  • @RobElliott It is outdoors and looks slightly rusted. That may have helped indeed. – imagineerThat Nov 12 '18 at 18:50

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