sink not flush with granite counter

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by tikicarver, May 9, 2011.

  1. tikicarver

    tikicarver New Member

    Messages:
    19
    Location:
    Tehachapi, CA
    Just had new granite counters installed.
    We bought a new Kohler cast iron porcelain coated sink, drop in style.
    The problem-- the edge of the sink is not flush with the counter.
    It looks like the sink is warped. The opposite corners are 1/8 off.
    For example if I press the right front corner down to touch the counter,
    the left rear corner will have an 1/8" gap with the counter.

    I checked the granite, it is level and flat.

    I'm wondering if this is normal with cast iron sinks or is the sink defective.
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,418
    Location:
    Bothell, Washington
    They can be warped. It's not an exact science. You can try more sinks, or caulk the sink in as is, and decide which side is going to be up a little bit.
    I would op for the front edge touching the granite, and the side away from you being up.
    Or you can balance between the two sides. When it's caulked, it won't move.
    Last edited: May 9, 2011
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,263
    Location:
    Cave Creek, Arizona
    They are fired until they are red hot, so they are more likely to be a bit warped than not. Once it is caulked in place it will NOT wiggle.
  4. tikicarver

    tikicarver New Member

    Messages:
    19
    Location:
    Tehachapi, CA
    Thanks for the reply. I was thinking they are probably not perfect, but I wanted to make sure since it was a special order.
    Didn't want to bring it back and wait three weeks only to find the next one is the same way or worse.
Similar Threads: sink flush
Forum Title Date
Plumbing Forum, Professional & DIY Advice Sink gurgle when toilet flushes, plumber cant figure it out Feb 25, 2014
Plumbing Forum, Professional & DIY Advice Flush mount sinks Feb 14, 2009
Plumbing Forum, Professional & DIY Advice island sink drain slow/not drain & toliet slow/not flushing Aug 21, 2008
Plumbing Forum, Professional & DIY Advice Kitchen sink Gurgles when upstairs toilets are flushed Feb 10, 2008
Plumbing Forum, Professional & DIY Advice Sink won't run unless toilet is flushed Oct 11, 2005

Share This Page