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Step 2 - Install RO Drain Under Sink
FIG. 6
FIG. 7
FIG. 8
INTRODUCTION
A suitable drain point is needed for the reject water from
the Reverse Osmosis Filter. You have two options to
choose from:
• Install the Drain Adapter included with your unit
See Fig 6, Fig. 7, and Fig. 8. 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. 6.
• Use another existing drain in your home
(See Fig 9, Fig. 10) 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. 9 & 10.
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 procedures.
INSTALL DRAIN ADAPTER KIT
(Under sink Installation)
In an under the sink installation, you normally use the
(P-trap) drain adapter. A drain adapter kit is included in
your package. Review the drain adapter kit parts in Fig. 7.
The drain adapter is always installed in the sink drain
pipe, above or ahead of the P- trap. See Fig. 6 & 8. Be
sure to comply with your local plumbing codes. The drain
adapter fits 1-1/2" sink drain pipes. Other drain pipe fit-
tings, purchased locally, may be needed in addition to the
adapter.
1. Slowly disassemble the sink drain pipe between the
sink P-trap and the sink tailpiece. See Fig. 6 & 8.
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. 7.
4. Assemble the drain tubing connector to the drain
adapter using the ferrule and nut. Snug the nut, but do
not tighten. See Fig. 7.
NOTE: Locate so drain tubing from the Reverse
Osmosis faucet will make a straight run to the
adapter, without dips, loops, low spots or kinks.
See Fig. 8.
5. Turn the connector to about 45° (10:00 or 2:00 posi-
tion). See Fig. 7. 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. 6.
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 plastic
connections.
Drain
Adapter
P–Trap
P–Trap
Sink Tailpiece
Drain Adapter
Drain Tubing
Connector
Cut, if
needed.
45°
45°
2:00
10:00
Ferrule
Single trap
Double Trap
Nut
Nut
Ferrule
Under The Sink Installation
IMPORTANT: Locate drain adapter so when the black drain tube
from the Reverse Osmosis Faucet is installed later
on, it will make a straight run to the adapter, with-
out dips, loops, low spots or kinks
P-Trap
HOT
COLD
Drain Adapter
Black Drain
Tube