Drop in sink to undermount sink

littlelizzy123February 24, 2014

My husband and I are going to be gutting our 1970s split level soon, and the only thing worth keeping in the entire thing is the sink. It is a beautiful, big, deep, 2-well, drop in, composite sink (I think). It's black in color with a matte finish, and looks a bit like some sort of countertop material. It's pretty much the only non- original thing in the house. I'd really like to keep it, but I HATE the fact that it is set a centimeter or so away from the backsplash and all sorts of nasties get stuck behind there. I love the look of an under mount sink, and we are getting new countertops anyway. We are thinking soapstone, quartz, caesarstone, concrete, etc. Really, any countertop is better than the flowered, sunshine yellow travesty we have now. I guess I'm asking since we are getting a brand new countertop anyway, could our countertop guy just install the sink as an under mount? I wanted to ask you guys first before they laughed at me...

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Update: This is a Blanco Silgranite II sink. Some sort of granite mixy thing.
I would probably change the faucet, as I really don't like the way it is offset. If you don't watch what you're doing, you can have the faucet turned to far to the right and water goes down the side of the counter. :(

Here is a link that might be useful: Blanco Silgranite Diamond Sink in Anthracite

    Bookmark   February 24, 2014 at 11:52PM
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littlelizzy 123:

Undermounting that sink shouldn't be any problem. Use a Hercules Universal Sink Harness.

    Bookmark   February 25, 2014 at 7:07AM
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Thanks so much! I'll look into it!

    Bookmark   February 25, 2014 at 10:48PM
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depending on the material you'll have an issue with how large the cutout would be. Even in quartz the front and rear rails will be quite thin. There are a few ways to deal with this, the best one being a "bump-out" at the sink location that makes the countertop about 3" deeper. Good choice if you have the room.

Otherwise a good fabricator could give you a couple of options.

One other consideration: drop in sinks usually have a larger radius at the corner between the vertical wall of the sink and the top flange. Not an issue if you want to expose the flange (which makes the cutout even bigger) but can be an issue of a bacteria trap if you are going with a slight overhang. from the pic yours looks like a fairly sharp radius.

    Bookmark   February 26, 2014 at 10:05AM
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