Whirlpool WDF518SAFB Installation Instructions | Page 8

Compact Tall Tub Dishwasher
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8

Option 2, Power supply cord method:

NOTE: A mating, three prong, ground-type wall receptacle
is required in a cabinet next to the dishwasher opening.

1. Drill a 1-1/2" 

(3.8 cm) hole in
the cabinet rear
or side. Preferred
and optional
locations are
shown.

2. Wood cabinet:

Sand hole until
smooth.

Metal cabinet: Cover hole with grommet (Part 
No. 302797) included with power supply cord kit.

Install the water line

Helpful Tip: Routing the water line through the left side
of cabinet opening will make water connection easier.

1. Drill a minimum 1/2" (1.3 cm) hole in the cabinet side,

rear or floor. Preferred and optional locations are
shown.

2. Measure overall length of copper tubing required. 

3. Attach copper tubing

to the water line with a
manual shutoff valve. 

4. Slowly feed copper

tubing through hole in
cabinet. Copper tubing
will bend and kink
easily, so be gentle.
The copper tubing
should be far enough into the cabinet opening to
connect it to dishwasher inlet on the front left of the
dishwasher.

5. Turn water shutoff valve to “ON” position. Flush water

into a shallow pan to get rid of particles that may clog
the inlet valve.

6. Turn shutoff valve to “OFF” position.

Install the drain hose

IMPORTANT: Always use a new drain hose.

1. Drill a 1-1/2" (3.8 cm)

diameter hole in
cabinet wall or floor on
the side of the opening
closest to the sink.

Option 1, Waste disposer – with air gap:

1. Remove the disposer knockout plug. Cut end of drain

hose if needed (do not cut ribbed section).

2. Attach drain hose to air gap with large spring-type

clamp*. If the drain hose was cut, use a 1-1/2" to 2" 
(3.8 to 5 cm) screw-type clamp*.

3. Use a rubber hose connector* with spring or screw-

type clamps* to connect air gap to disposer inlet. 

This connection must be before the drain trap and at
least 20" (50.8 cm) above the floor where dishwasher
will be installed.

drain
hose

large
spring-type
clamp

air gap

rubber hose
connector

disposer
inlet

drain trap

drain hose –
cut here if needed

spring or
screw-type
clamps

2. Connect drain hose to waste tee or waste disposer

using one of the following methods:

• Option 1, Waste disposer – with air gap

• Option 2, No waste disposer – with air gap

• Option 3, Waste disposer – no air gap*

• Option 4, No waste disposer – no air gap*

*an air gap is recommended

Helpful Tip: To reduce the vibration of the hose, keep
the hose away from the floor and the edge of the hole
where it passes through the cabinet.

copper
tubing

optional
locations

preferred
locations

preferred
locations

optional
locations

 Parts available from local plumbing supply store.

*

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