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Installing a sink

April 16, 2010 at 2:07 pm | Category: Remodeling Contractor



1. Position the sink upside-down on the recently laminated counter top or the plywood base. Try to center it but leave at least 1 1/2 inches and not more than 3 inches from the edge of the counter. Pencil in a pencil line around the edge of the sink; then, take out the sink. (If you are using a metal rim for sinks that are not self-rimming, you can use the rim’s vertical flange as a template rather than the sink itself.)

2. Measure inward, and draw another line inside of that sink line, 1 1/2 inch. Be sure of your marks.

3. Drill a hole big enough for a sabre saw blade to the inside of each corner of the inside line. Cut along the inside pencil line with your sabre saw while another person supports it from below. Then lift that waste piece out.

4. Place a line of caulk along the entire bottom edge of the upside-down (self-rimming) sink. Position it carefully over the opening and press it down firmly until excess caulk oozes out along the edges. Follow the manufacturer’s instructions for any additional hardware that comes with the sink.

5. Individual faucets will also have manufacturer’s instructions to follow. They are mounted through the holes in the sink using plumber’s putty. An adjustable wrench works well to tighten up the hardware that holds the faucet in place.

6. Supply line connector kits are available that contain the flexible chrome pipe, hardware, shutoff valves and instructions. You will need to specify the diameter and material of the supply pipe and whether or not you will be adding a dishwasher. The dishwasher requires a special T-shaped shutoff valve.

7. The basket strainer should be packed with plumber’s putty and pushed firmly down into place. Where the strainer is threaded underneath, a washer slips on and then a lock nut is tightened down until the putty oozes out. Clean off all excess putty.

8. Install the P-trap next by connecting the tail piece to the basket strainer using a slip nut over a washer. Then connect the P-trap to the tail piece with another washer and slip nut. Attach the P-trap to the wall stub-out with a curved drain extension pipe


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