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Question DetailsAsked on 3/16/2015

Can I safely drill an extra faucet hole in a marbelite vanity/sink? I'm worried about cracking and splitting.

I have a marbelite vanity/sink with a one hole faucet and a soap dispenser hole next to it. I would like to replace the faucet (and soap dispenser) with a three hole faucet. It seems like I could just drill a hole on the other side of the existing faucet hole and use the soap hole as the third hole for the faucet. Am I missing an obvious problem?

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1 Answer


Check your spacing to see if your selected faucet will fit the hole spacings, of course. Marbelite is a resin concrete product, so other than getting real stinky when you drill (so not breathe the fumes) it does not drill al lot different than say cement backer board. You use a circular (coring rather than full-diamter drilling) bit to drill it. The big risk, especially in narrow zones like where faucets mount, is cracking it. If you are an experienced DIY'er and have the carbide or diamond bit to core it in the right diameter, go slow and lubricate the cutting with water and avoid lateral pressure and you sahould be OK.

Considering the cost to replace or repair the countertop product if it breaks, if you have not done coring before I would recommend paying a Countertop contractor the $100-150 he is likely to charge to get it done by a pro - especially since renting or buying the bit is likely to account for at least $40 to maybe 100 anyway, depending on size and availability.

Answered 5 years ago by LCD

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