tightening widespread valve bodies on granite

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by bbillcee, Mar 10, 2011.

  1. bbillcee

    bbillcee Member

    Joined:
    Feb 25, 2007
    Location:
    New York
    hi

    i tightened down some valves on the granite vanity top, i made them pretty tight, but if try to move them they can move though it takes some forcing

    how tight can i make them on granite? can i tighten them super tight with no worry of cracking the granite??

    i'm paranoid because i broke a toilet in the past making stuff super tight....i know thats much weaker than the granite but just want to be sure
     
  2. LLigetfa

    LLigetfa DIYer, not in the trades

    Joined:
    Feb 6, 2011
    Occupation:
    Semi-Retired
    Location:
    NW Ontario, Canada
    Is it metal on stone with plumber's putty or rubber gaskets? The last fixture I mounted on granite I made the mistake of using plumber's putty and it stained. I caught it in time and removed the putty, got rid of the stain and made my own gaskets from thin EPDM rubber. I used big fat O-rings in place of the putty to fill the gap around the inside of the hole.

    I doubt you can break the granite by over tightening it. You are more likely to break the fixture.
     
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  4. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Stone is pretty tough. I've never heard of anyone being able to break the stone.
     
  5. bbillcee

    bbillcee Member

    Joined:
    Feb 25, 2007
    Location:
    New York
    they have gaskets......maybe i'll just leave it as is for now and see if i experience any movement with everyday use
     
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