INSTALLING YOUR NEW LAVATORY
There are many ways to install an undermount sink, and the details of the installation will depend on the quality of your cabinets and countertop. This installation guide describes only one way of installing an undermount sink. These instructions assume that you are working with a base cabinet with no sink or countertop currently installed. The countertop you are going to install will also need to have holes cut to accommo- date the sink and faucet.
1.Determine the centerline of the sink position and alignment with cabinet and countertop. A template is provided for locating the sink bowls and faucet holes.
2.Attach two support boards to the sides of the cabinet, one in front and one in back, placing them 20 1/2" apart and equal distances from the centerline (See Figure 2, A). Place the boards at the proper height to allow the top of the sink to be flush with the top of the cabinet. It may be necessary for you to reinforce the sides of the cabinet for it to support the
3.Rest your sink on the support boards and slide it from side to side until it is centered. At this point, you can also check the sink cutout measurements of your countertop.
B 
A
B
A
Figure 2
4.Now that you have the sink in position, attach two more 20 1/2" boards between the support boards (See Figure 2, B).
5.Shim the sink to bring it to the proper height.
6.Install the countertop. Put a seal of caulk between the sink and countertop to prevent water leaks.
7.Install the basket strainer. First,
clean around the drain hole with a damp | STRAINER BODY | |
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cloth to remove any dust or other | PLUMBERS PUTTY | |
particles that may interfere with a | ||
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watertight seal. Remove the washers | SINK | |
and nuts from the basket strainer. Pack | ||
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the underside of the basket with |
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Plumbers Putty and push it firmly in |
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place. Put the large rubber washer over | LOCKNUT | |
the basket threads from under the sink, | ||
WASHERS | ||
followed by the thin washer (may be | ||
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made of paper, fiber, or metal). Thread | Figure 3 | |
the large metal lock nut onto the strainer |
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body and tighten (See Figure 3). |
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