Putting a sink in a kitchen island

Question

What do I need to consider when putting a sink in a kitchen island. Is it a pain to do in terms of pipework and fitting?

Danny · Accepted Answer

Hi, the main thing is running the waste for the sink. The water supply is not normally a problem. The waste needs a fall to run away and if you have screed floor then this will need to be chased out to run the pipe then its where it will go once its out the wall. The fitting of the sink after the waste and water it run is the same where ever the sink goes.

Pamela · Answer

Best to consider the distance you are moving the pipework from your existing sink to where the new sink is to be relocated.  Take into account....are the floors wooden or concrete..Concrete needs channelled out so more expensive, water pressure.

Mark · Answer

Hi,

No all needs doing is the floor dug up to allow for plumbing to the island, if concrete i always fit pipes in a small duct for protection

Craig · Answer

The biggest consideration is the waste flow out of the island to the external waste or to connect up to your internal waste flow.  
The hot and cold can be run under the floorboards and up into the island, but the waste cannot always be routed this way.
You need to ensure that you always have the waste falling away for the flow, even if it's just a small downward flow, its usually good enough.

Stuart · Answer

It is doable, as you have said the only issues really are getting water to the taps and getting the waste away. It really depends on where the water needs to come from and where the waste needs to go to get to a drain. Obviously, it’s all gonna have to go under the floor so I really just depends on which way the joists run if it’s a wood floor. Obviously, if it’s a concrete floor it’s a lot more difficult as you’re gonna have to channel the pipework into the concrete and still maintain a fall on the waste. If it’s a fairly new built house, it could be easier as they tend not to use big heavy joists nowadays which could make it easier to get the pipes to where they need to be.

Daniel · Answer

hello we would suggest getting specialist tools for fitting taps ect from screwfix

Karl · Answer

You should always use a competent kitchen fitter.
Leaks and movement can cause future issues and damage.

Mirek · Answer

The water supply is no problem. The waste pipe could be challenging.

Martin · Answer

It all depends on what type of fool you have in your kitchen if it's a suspended floor then the job is easy if it concrete then you need to dig a channel in the floor to run your pipes you can run all your pipes and cables for lights ands plug sockets in the same channel as long as you put them in pipes so the water and electric are kept apart

Iain · Answer

The job in question asks the following,,waist water can we accommodate with means of under floor  access , if so can be done , then we can use that route of access to send and feed hor and cold water supply

Putting a sink in a kitchen island

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