Pentair FRESHPOINT GRO-475M Installation And Operation Manual page 4

PRECAUTIONS
GENERAL
Do not use with water that is microbiologically
WARNING:
unsafe or of unknown quality without adequate
disinfection before or after the system.
Systems certified for cyst reduction* may be
used on disinfected waters that may contain
filterable cysts.
*NSF/ANSI Standard 53 and 58 certified to reduce cysts such
as Cryptosporidium and Giardia by mechanical means.
RO System must be protected against freezing,
CAUTION:
which can cause cracking of the RO components
and water leakage.
NOTE:
• Your water must be within required limits for satisfactory
operation. If not, your membrane life may be shortened and
your warranty will be voided (see Specifications on page 3).
• This reverse osmosis system will not protect against
disease-causing bacteria or remove naturally-occurring
harmless bacteria.
• Install on cold water line only.
• Make certain that installation complies with all state and
local laws and regulations.
• The replacement cartridges and reverse osmosis element
included with this system have limited service lives. Changes
in taste, odor, and color of the water being filtered indicate
that the cartridge should be replaced.
• After prolonged periods of non-use (such as during a
vacation) it is recommended that the system be flushed for 5
minutes before it is used.
• A drinking water cartridge may contain carbon fines (very
fine black powder). After installation, flush the system for 5
minutes to remove the carbon fines before using the water.
• It is recommended that you run the tap at least 20 seconds
prior to using water for drinking or cooking purposes.
• The contaminants or other substances removed or reduced
by this water treatment device are not necessarily present in
your water.
4 • FRESHPOINT GRO-475B/GRO-475M Installation and Operation Manual
HOW REVERSE OSMOSIS WORKS
The GRO-475B/GRO-475M Reverse Osmosis (RO) System uses
a semi-permeable membrane to reduce dissolved salts and
minerals, improving the taste and odor of your water. The RO
membrane is made of layers of micron-thin film wound around
a hollow center core. Water molecules can pass through the
membrane, but dissolved salts and minerals are rejected.
The GRO-475B/GRO-475M Reverse Osmosis System features
4-stage filter action. Your water supply is pre-filtered to
reduce dirt and chlorine that may foul the membrane. The RO
membrane separates this pre-filtered water into PRODUCT
WATER and DRAIN or REJECT WATER. Incoming water
pressure forces the product water through the membrane and
into the storage tank. Dissolved solids and other contaminants
cannot pass through the membrane and are sent to the drain
as reject water. When you open the drinking water faucet,
product water is drawn from the storage tank through an
activated carbon post-filter, providing you with cleaner, great-
tasting water.
For each gallon of water produced, several gallons are
discharged as reject water. The storage tank can hold up to
2.1 gallons (7.9 L) of water at a time, for drinking and cooking
needs. When used under the Specifications on page 3 of the
manual, your Reverse Osmosis membranes should last 12-24
months.