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    woodmant's Avatar
    woodmant Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 1, 2006, 07:30 AM
    Pipe threading
    I'm trying to unscrew a nut in a cleanout line, and it won't budge in the counter-clockwise direction, but will
    Move in the clockwise direction. Are these pipes oppositely threaded, or is it simply a question of forces and mechanical advantage? Thanks, Roy
    iamgrowler's Avatar
    iamgrowler Posts: 1,421, Reputation: 110
    Ultra Member
    		  
    #2

    Oct 1, 2006, 07:37 AM
    There are reverse thread nipples and couplings for making repairs in previously assembled systems, but no reverse threads on c/out plugs.

    Are we talking about a c/out plug screwed into a sanitary tee, or are we talking about something altogether different?
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Oct 1, 2006, 07:38 AM
    Quote Originally Posted by woodmant
    I'm trying to unscrew a nut in a cleanout line, and it won't budge in the counter-clockwise direction, but will
    move in the clockwise direction. Are these pipes oppositely threaded, or is it simply a question of forces and mechanical advantage? Thanks, Roy
    Hi Roy,

    No, the pipes all have right hand threads. They unscrew counterclockwise. Hit the threads with some WD-40 and try again. Good luck. Tom
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