Step B - Install Reverse Osmosis Drain - Whirlpool WHER25 Installation And Operation Manual

Step B - Install RO Drain Under Sink
INTRODUCTION
A suitable drain point is needed for the drain water
from the Reverse Osmosis Filter. You have two options
to choose from:
• Install the Drain Adapter included with your unit
See Fig 7, Fig. 8, and Fig. 9. This is used in under
the sink installations. The drain adapter kit is
installed onto your sink drain pipe above the P-trap.
See Fig. 7.
• Use another existing drain in your home
(See Fig 10 & 11) This is usually used in remote
location type installations. The drain tube from the
Reverse Osmosis Filter runs directly to an open
drain. See Fig. 10 & 11.
NOTE: An incorrectly connected drain point can
cause water to leak from the faucet's air gap.
NOTE: Local code may dictate which type of drain
installation is used. Other than local code, either
drain install type may be used in both under the
sink or remote location installations. Consult a
plumber if you are not familiar with plumbing pro-
cedures.
INSTALL DRAIN ADAPTER KIT
(Under sink Installation)
A drain adapter kit is included in your package. Review
the drain adapter kit parts in Fig. 8. Install the drain
adapter above or ahead of the P-trap. See Fig. 7 & 9.
Be sure to comply with your local plumbing codes. The
drain adapter fits 1-1/2" sink drain pipes. Other drain
pipe fittings, purchased locally, may be needed in addi-
tion to the adapter.
1. Slowly disassemble the sink drain pipe between the
sink P-trap and the sink tailpiece. See Fig. 7 & 9.
2. Clean the sink tailpiece to assure a leak-tight fit.
3. Install drain adapter directly onto the sink tailpiece
using the ferrule and nut. Snug the nut, but do not
tighten. See Fig. 8.
4. Assemble the drain tubing connector to the drain
adapter using the ferrule and nut. Snug the nut, but
do not tighten. See Fig. 8.
NOTE: Locate so that the drain tubing from the
Reverse Osmosis faucet will run straight to the
adapter, with no dips, loops, or kinks. See Fig. 9.
5. Turn the connector to about 45° (10:00 or 2:00
position). See Fig. 8. Tighten the nut securely.
6. Assemble the P-trap to the drain adapter, and other
drain pipe fittings as required to complete the drain
run. See Fig. 7.
NOTE: If needed, you can cut the unthreaded
end of the adapter to make it fit. Do not cut too
short or the adapter will not make a leak-tight
seal with the connecting fitting.
7. Tighten all connections, but do not over tighten plas-
tic connections.
Single trap
P–Trap
Under the Sink Installation
Nut
Ferrule
Cut, if
needed
Drain Tubing
Connector
HOT COLD
IMPORTANT: Locate drain adapter so that when the
black drain tube from the Reverse Osmosis
Faucet is installed it will run straight to the
adapter, with no dips, loops, or kinks.
8
Double Trap
Drain
Adapter
P–Trap
45°
Sink Tailpiece
10:00
Drain Adapter
Ferrule
Nut
Black Drain
Tube
Drain Adapter
P–Trap
FIG. 7
45°
2:00
FIG. 8
FIG. 9