GE PNRQ20RBL Owner's Manual & Installation Instructions page 20

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).
4" minimum
Reverse
Osmosis
drain line
20
Installation Instructions
Optional disposer
SECONDARY INSTALLATION:
OPTION D—DRAIN LINE ADAPTER
INSTALLATION
NOTICE:
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.
(mandatory)
Optional
disposer
From second
Drain line connection should be 180°
sink or
opposite existing horizontal pipe/baffle-tee
disposer
as shown in diagram
Proper drain line adapter orientation.
45°
Drain line
adapter
Maximum 45°
Baffle tee
Reverse
Osmosis
drain line
Drain line
adapter
From faucet air gap
Drain line
adapter
49-50322