Installation Instructions
FILTRATION DRAIN CONNECTION (cont.)
PREFERRED INSTALLATION:
OPTION C—WET-VENTED P-TRAP
INSTALLATION
Install a p-trap under the sink to be used exclusively
for the Reverse Osmosis drain line.
A wet-vented p-trap is a p-trap that shares a
common vent/stack. Attach the drain line adapter to
the p-trap and secure it with the slip joint nut and
washer as shown. The drain line MUST be routed
through the air gap provided in the RO water faucet.
Locate the Reverse Osmosis p-trap as high as
possible (minimum of 4” above horizontal).
1”
SECONDARY INSTALLATION:
OPTION D—DRAIN LINE ADAPTER
INSTALLATION
CAUTION:
Using Option D
may result in clogging under adverse
conditions and requires periodic
inspection/cleaning by the user.
DO NOT INSTALL THE DRAIN LINE
DOWNSTREAM OF A DISPOSER OR IN A
HORIZONTAL PIPE.
Install the drain line adapter
under the sink as shown (parts included). The baffle
tee shown must be installed to prevent a clog in the
Reverse Osmosis drain line. Route the drain line
from the air gap to the drain line adapter, ensuring
that there are no dips, loops or low spots in the line.
The drain line adapter should be aligned vertically so
that the hose connection points upward (the hose
connection should never be allowed to drop below
45° from this vertical position). This installation MAY
result in a slight drain noise in the sink drain when
the Reverse Osmosis system is regenerating. If this
happens, simply place the sink drain stoppers
in the strainer to suppress it.
Reverse
Osmosis
drain line
Optional disposer
Reverse
Osmosis
drain line
4” minimum
Drain line
adapter
Maximum 45°
Baffle tee
(mandatory)
Optional
disposer
From second
sink or
disposer
45°
From faucet air gap
Drain line
adapter
Drain line connection should
be 180° opposite existing
horizontal pipe/baffle-tee as
shown in diagram
Drain line adapter
Proper drain line adapter orientation.
16
49-50198-1_ EN:49-50198 EN.qxd 12/30/2009 11:22 AM Page 16
