INSTALLING YOUR NEW LAVATORY
4
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 350-pound minimum.
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.
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
cloth to remove any dust or other
particles that may interfere with a
watertight seal. Remove the washers
and nuts from the basket strainer. Pack
the underside of the basket with
Plumbers Putty and push it firmly in
place. Put the large rubber washer over
the basket threads from under the sink,
followed by the thin washer (may be
made of paper, fiber, or metal). Thread
the large metal lock nut onto the strainer
body and tighten (See Figure 3).
20-1/2"
B
A
B
A
Figure 2
STRAINER BODY
PLUMBERS PUTTY
SINK
LOCKNUT
WASHERS
Figure 3
