If you want to know how to fit a drop-in sink in your kitchen and bathroom, then these instructions will be a great help to you. This is not a particularly difficult or time consuming job, and more work will be involved connecting pipes in a professional manner than fitting the sink.
What You Will Need
You will obviously need your sink and the hardware to go with it, but there are some other necessary items too. You will need a caulking gun and sealant, a pencil, a drill and suitable bits, a jigsaw and blade, and some plumber’s putty.
Marking the Hole
You will need to make sure that the position you want your sink in is a suitable place to situate it, so put the sink upside down on the counter top, and look underneath to make sure there is enough space for your pipes and drainage. Once you are certain everything is OK, you can mark out your hole. If you have a template you should use that, but if you do not, then you will need to use the sink itself. Turn the sink upside down and lightly mark the outline of the sink on the counter top (once you are sure of its position), and put a few aligning marks on the sink and worktop to line up to later. You will then need to measure the lip of the sink and scribe that distance inside the outline of the sink.
Cutting the Hole
To start you will need to drill a hole through the work surface, and I would suggest putting some masking tape over the center of your proposed hole to avoid slips and damage to the work top. After drilling a pilot hole, you will need to drill a hole large enough to put your jigsaw blade through, and then carefully cut around the inside line you have scribed. If you can support the cut out from below it is much better, as this stops vibration and any damage should the cutout fall through.
Fitting the Sink
Offer your sink up to the hole again to make sure it will fit inside, and remove more counter top if necessary, then fit your hardware to the sink (use plumbers putty on the drain hole to ensure a leak free fit). Now you can put a continuous bead of kitchen or bathroom silicon sealant around the lip of your sink, and carefully hold the sink over the hole. Line up your marks on the sink and counter top, and lower the sink into place. You should press the sink onto the surface so that it can bed in, and then tighten any mounting screws that are fitted. The excess sealant should be wiped away within a few minutes as it will start to set soon after that.
Connection to the Water Supply
You should now leave your sink for 24 hours to let the sealant completely set, after which you can start to connect up to the water supply and the drainage system.