Retrofit mixer tap to existing sink

[Murphy575]

Hi

We've got a sink that's all built in and while it has fairly easy access from under it, the cupboard below has been cut to fit the sink.

The sink it's self is fine, good size, fits nicely in place. BUT it's got 2x taps, one hot one cold.

The taps are connected via flexihose which makes the job easier and one of those hoses has bust and the hot tap is also dodgy and has been for while.

SO, I thought if I'm going to replace the hose, I may as well replace the tap at the same time.

THEN I thought, if I'm going to replace the tap... a mixer tap would be nice.

But I don't want a mixer tap on the left or right it should be in the middle.

SO, without replacing the entire sink, is it possible to drill a hole in the middle of the porcelain sink and pop a mixer tap there, then plug the 2x holes?

If so, what drill bit would I need? Ideally I don't want to crack the sink(!)

If not, it's no biggie, it was just an idea

 

[Burnerman]

Consider a diamond grit hole saw, but you’ll only get one shot at it!
You’ll have to pierce the glaze very carefully as you work.
Would anyone else recommend this?
John

 

[RayCaister]

No drilling required ... https://tapstore.com/kitchen-taps/2...grave-bridge-swan-neck-sink-mixer-chrome.html

 

[Harry Bloomfield]

But I don't want a mixer tap on the left or right it should be in the middle.

I did that, several years ago, but putting the tap on one side - the left seemed most appropriate and more out of the way in use. I thought in the middle, anyone rinsing their face, might crack their head on the tap. I fitted a chrome blank to the right hand hole and added a plug remote control at the same time. I had to drill a hole to accommodate the control rod, in the porcelain.

Be aware that mixer taps are usually only designed for mains pressure from both hot and cold. My hot is on a stored system, so it proved a little slower flow than I would have liked. Removing the aeriator mesh in the tap, made it flow much better.

 

[Burnerman]

No drilling required ... https://tapstore.com/kitchen-taps/2...grave-bridge-swan-neck-sink-mixer-chrome.html

For sure, definitely the best option if the span of the new tap permits.
John

 

[Madrab]

Are you talking about a kitchen sink or a basin in the bathroom? Is the basin/sink deck between the tap holes perfectly flat, in line and within 180mm of each other?

Coring the enamel could be done with a diamond corer, the trick would be getting the hole started without any movement and it would have to be done slowly to start with plenty of water to get through the coating. Not something to be tried unless experienced with diamond coring on say porcelain tiling etc.