tub overflow pipe won't budge to replace gasket

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by tbbarch, May 24, 2013.

  1. tbbarch

    tbbarch Member

    Sep 24, 2008
    I've done a couple overflow gasket replacements and there is always some flex in the pipe to pull out the old overflow gasket and replace it.

    The tub in question is a cast iron niche tub from 1965 with a flat overflow gasket. I removed the cover plate and could not with moderate force get any movement in the pipe by pushing from the tub or gripping and forcing to the side or pulling from the back or applying some leverage off the tub with a screw driver.

    How much force is reasonable on the brass pipes to get them to separate from the gasket?
    Should I use a hammer and block of wood and tap it sideways from the back or to push it out from the tub side?
    Should I try to hammer a scrapper blade under the gasket from the back side?
    Is there a way to know if the gasket has the pipe "glued" to the tub or if the pipes are just so inflexible?

    LAST THING this repair needs is for the pipes to need replacing.

    Thank you
  2. Winslow

    Winslow Plumber

    Dec 30, 2005
    Just seal the overflow with propoxy and call it good.
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    I have seen many brass tub drain assemblies which were soldered together and there was no movement possible with them. Whether yours will have any movement without breaking anything is something we cannot answer.
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    Is it possible that they silicone the gasket in place? IF so, it's a bear to remove.
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