Drilling porcelain/cast sink for RO installation?

[josh1]

Has anyone drilled a porcelain/cast sink in order to install an RO unit?If so how did you do it,and what should I look out for?
Thanks Josh

 

[amber]

this may or may not help you--we came up thru the formica counter right next to the sink.

 

[MandarinFish]

Did you/are you planning to install a special RO/DI faucet?

 

[AnotherGoldenTeapot]

It's just as easy as drilling glass - like a knife through warm butter.

Depending how big a hole you want you either use a diamond tipped drill bit or a diamond core bit.

Look for one of the threads on how to drill glass - it's exactly the same process.

 

[SPC]

Uh, I'm a bit confused here. Why would you ever need to drill a hole in a sink for an R/O unit? You can't get to the plumbing under the sink?
Steve

 

[josh1]

I'm wanting to drill the sink in order to install the spigot that came with the unit.It allows you drain the storage tank located under the sink.
Thanks Josh

 

[SPC]

I am still confused, why can't you tie into the drain itself? If you are under the sink, thats where the drain for the sink is I presume.

Steve

 

[josh1]

SPC, the drilling has nothing to do with drainage,it is only to access the RO water that has already been treated under the sink.Every- thing takes place under ths sink,the only visible sign of the system above the sink is the spigot.In order to install this spigot,I must drill a hole in the sink next to the faucet.

 

[SPC]

I'VE GOT IT! Thanks

Steve

 

[platylover]

I had to do this the other day when I got an R/O system for my friend. It's not a big deal. I drilled a 1/2" hole using a carbide-tipped drill bit. Before you start the drill, you want to press down hard at first to crunch through the porcelain so the bit doesn't wander.