I am trying to remove this supply line nut but it is on super tight. and because it is connected to a softer pipe just right below it, the whole thing moves along when I try to unscrew the nut so I can't get much leverage as I'm afraid I might break the whole thing.

Does anyone have any ideas I can try ?


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2 Answers 2


You need two adjustable wrenches. Use one to hold the valve body and the other one to turn that nut counterclockwise. The one holding the valve can be supported by holding it against the wall.

  • 1
    You may be able to position the two wrenches so just squeezing them together will loosen the fitting. Sorry if this doesn't make sense but anyone that's done it knows what I'm talking about. Jan 20, 2021 at 22:48
  • @PlatinumGoose I know exactly what you're talking about but typing it out to explain the procedure would be tough. :-)
    – JACK
    Jan 20, 2021 at 23:28
  • @PlatinumGoose any way you can show on the picture where I would position the 2 wrenches to loosen the fitting ? thanks !
    – Tom Hu
    Jan 21, 2021 at 16:12
  • @JACK the 2 wrench method works! thanks ! unfortunately I was trying to use the backflow method to clear my clogged kitchen sink single faucet, and it doesn't work. Do you know if there any other way to fix the faucet ? or the only way is to replace the whole thing ?
    – Tom Hu
    Jan 21, 2021 at 19:20
  • 1
    @TomHu That should probably be in a separate question.
    – Valkor
    Jan 22, 2021 at 8:48

Notice the way the wrenches are positioned. When you squeeze them together the top nut will turn counter clockwise and the bottom one will turn clockwise. With the top and bottom nuts having six sides and the wrenches having an offset you can usually position them just far enough apart like in the photo. Sometimes you have to flip one or both of the wrenches over so the offset points the other direction. The farther out you squeeze the more leverage you get. enter image description hereenter image description here

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