Cooper or brass under it caused an reaction.
Kris

On 1/6/2011 5:38 PM, Fred Hueston wrote:
ok partners...heres a tough one..what do you think is causing this discoloration.  It didnt turn this blueish green until after it was installed




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Frederick M. Hueston PhD
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Marble Floors And More
Kris Dougherty
3304 N Lindbergh Blvd.
Saint Ann, MO 63074
Cell - 314.503.3062
Fax - 314.298.1227