Drainboard Kitchen Sink Installation

drainboard kitchen sink
  • 4-6 hours
  • Intermediate
  • 400-700
What You'll Need
Drill and drill bit
Masking tape
Mounting hardware
100 silicone Caulk

Installing a drainboard kitchen sink is not very difficult compared to installing more difficult sinks, such as the undermount. Drainboard sinks are those which have a draining device fitted to one side of the sink, which allows cutlery, plates and pots to drain water rather than leaving puddles on countertops. Water will generally drain back into the sink, and drainboards do not require a second drainage system themselves. Installing kitchen sinks is generally done by a professional plumber, but if you have just purchased a new drainboard kitchen sink, and are reluctant to let anyone else install it, then you can do the job yourself in a matter of minutes. Follow a few simple guidelines to help you get the job done quickly and easily.

Step 1 - Cut the Countertops

If this is the first drainboard kitchen sink you have had in your kitchen, you will need to cut the shape of the board into the countertop. You should have a maker's template with your sink, which will show you where to cut. Mark along the edge of the sink design using masking tape, and then drill around this tape using a fine drill bit. You can then complete the job using a saw to cut through the countertop. A file might come in handy to remove any shards caused by the saw. While you are drilling the outline of the sink, it is a good idea to make any holes for the mounting pieces, which will also be marked on the template you are using.

Step 2 - Place the Sink

Turn off the water supply at the mains. The sink will have to be fitted in from above, so you may need the help of a friend to lower it gently into position. Once the sink is resting at the edge of the hole, use the mounting bolts and the screwdriver to screw it tightly into place. You may need to use clamps to keep the sink in position while you are screwing the pieces in tightly. Once the mounting bolts are in place, you should lean slightly on the sink to ensure that it can take the weight of any pots and pans.

Step 3 - Install the Drains

Once the sink is in position, you will need to fix in the drain pieces. You should have a drain plumbing kit to hand. Remove the parts from this, and arrange them on the floor. When they are all dry-fitted, use your saw to make adjustments in the length of piping. Screw in the strainer basket, place the washers below this, and fit your vertical pipe into position. Add the joint of the horizontal pipe, and then the pipe itself, before using your wrench to tighten the screws which connect all these pieces together. Caulk around the edges.

Step 4 - Finishing

When the drainage system is complete, finish up by caulking around the edges of the sink, and installing any hardware such as faucets or taps. Leave the caulk to dry for 24 hours before using your sink, and turn the water back on.