US Water Systems 200-USRO, Owner'S Manual, Page: 3 / 24

Installation Instructions
Residential Reverse Osmosis Drinking Water System
Page 3
Parts Check List

RO Module

Tubing Bundle

Filter Wrench

Drain Saddle

Tank Valve

Angle Stop Feed Valve

Tank and Side Mount Tank Stand

Faucet and Mounting Kit

Faucet Connector

Pre and Post Filters

Membrane

Installation Instructions
COMPONENTS
The following components make up your Reverse
Osmosis Drinking Water System:
PRE-FILTER
(sediment filter) removes larger particles
such as sand, silt, rust and scale, (activated carbon filters)
remove chlorine in the feed water to protect the reverse
osmosis membrane.
REVERSE OSMOSIS MEMBRANE
reduces
dissolved
minerals, metals and salts. During the process,
harmful compounds are separated by the membrane and
the reject water goes to waste (drain).
An activated carbon
POST-FILTER
is provided for a final
“polish” and to remove foul tastes, odors and to provide
great tasting drinking water.
FILTER HOUSINGS
and
R/O MODULE
hold pre-filters
and membranes. A
BRACKET
is provided so they may
be mounted, typically below sink.
STORAGE TANK
holds filtered water, ready for use.
AUTOMATIC SHUT-OFF VALVE (ASO)
senses
when the storage tank is full and closes the water supply
to conserve water. (not used in permeate pump system)
PERMEATE PUMP
is used to pressurize the tank and
distribution system. This pump is operated by the drain
water. The permeate pump will dramatically increase the
faucet pressure. A permeate pump system will not have
an ASO valve.
The dedicated
FAUCET
is used to dispense RO
produced water when needed.
FEED WATER ANGLE STOP VALVE
is connected to
the cold water line to supply water to the R/O system.
WASTE WATER SADDLE VALVE
is connected to the
drain to remove reject water from the R/O system.
TUBING
supplies feed and reject water.
FITTINGS
are used for necessary hose connections.
Tools
The following tools may be necessary, depending on
each particular installation:

3/8” Drill and ¼” drill bit and Faucet Drill bit (Standard
Faucet use a 7/16” drill bit, Air Gap Faucet uses a 7/8”
minimum and 1 1/8” maximum drill bit).

Phillips head and flat blade screwdrivers

Adjustable wrench

Crescent wrench

Teflon tape

Plastic tube cutter
System location
Your R/O system may be installed under a sink, in a
basement or other location, depending on available space.
Do not install unit where temperatures fall below freezing;
otherwise, damage will result. Connection to an icemaker
should also be considered for optimum performance.
Guidelines for component placement are as
follows:
FAUCET
should be placed near the sink where drinking/
cooking water is normally required. A 2” flat surface is
required to mount the faucet if an existing hole for a second
faucet is not available. The thickness of the mounting
thickness should not exceed 1-1/4”.