Drilling an extra hole in a cast iron sink
Posted by Scott Halbleib on February 02, 2004 at 09:23:58:
We have a 4 hole cast iron sink and a faucet that requires 4 holes, so including the dishwasher air gap would require 5 holes. Is it possible to successfully drill a fifth hole? What's the best way to go about it? Is there another option for the air gap?


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