SINK

Is the problem ...

 The tap is constantly dripping ? 

Guidance:

This is often a result of wear and tear to the O-ring, washer or ceramic cartridge - all of which can deteriorate over time through normal use, overtightening, high water temperatures. If your tap starts to drip in the first 18 months, report it as a defect - all you need do in the description box is quote the code TD and state:
* Kitchen or utility room
* Type - mixer or single
(nothing else, no explanation, just this), otherwise you should manage this as a part of householder maintenance.
 The tap is stiff ? 

Guidance:

See explanation above - report it as a defect - all you need do in the description box is quote the code TS and state:
* Kitchen or utility room
* Type - mixer or single
(nothing else, no explanation, just this).

 The plug will not stop the water from escaping ? 

Guidance:

Is there anything obstructing the plug from making a tight seal? If not, report it as a defect - all you need do in the description box is quote the code PWS and state:
* Kitchen or utility room
* Type - pop up or leaver operated
 (nothing else, no explanation, just this).

 The silicone seal around the sink has gaps ? 

Guidance:
In the first 6 months report this as a defect - all you need do in the description box is quote the code SSF and state:
* Around the sink in either the kitchen or utility room
(nothing else, no explanation, just this), otherwise you can replace the silicone seal under householder maintenance.

 Waste water is not draining from the sink ? 

Guidance:

This will be because there is a blockage somewhere in the waste pipe. Try using a 'plunger' - this usually works, otherwise a shop bought 'drain un-blocker' fluid otherwise report it as a defect - all you need do in the description box is quote the code WWND and state:
* Kitchen or utility room 
(nothing else, no explanation, just this).

 There is a leak from underneath the sink ? 

Guidance:

Is the leak coming from the immediate underside of the sink where the plug connects through to the waste pipe? If so, try tightening the connector by hand - this usually works. If the leak is coming from some other section of waste pipe (white or grey plastic) then identify the joint and try tightening by hand. If the leak appears to be coming from a water feed to the taps, report it as a defect - all you need do in the description box is quote the code LUS and state:
* Kitchen or utility room
* Confirm that you haven't recently plumbed something in 
(nothing else, no explanation, just this).