4 • EVERPURE
®
PRO-Reverse Osmosis Water Filtration System Installation and Operating Instructions
HOW REVERSE OSMOSIS WORKS
The Everpure PRO uses a semi-permeable membrane to
reduce dissolved salts, improving the taste and odor of your
water. The RO membrane is made of multiple layers of
micron-thin film wound around a hollow center core. Water
molecules can pass through the membrane, while dissolved
salts are rejected.
The Everpure PRO system features triple-filter action. Your
household water supply is prefiltered to reduce dirt and
chlorine that may foul the membrane. The RO membrane
separates this prefiltered water into PRODUCT WATER and
REJECT WATER. Your household water pressure forces the
product water through the membrane and into the storage
tank. Dissolved salts cannot pass through the membrane and
are sent to the drain as reject water. When you open the RO
faucet, product water is drawn from the storage tank through
a post-polishing filter. The post-polishing filter takes out any
remaining taste or odor in the water and provides you and your
family with cleaner, great-tasting water.
The PRO system also features an auto shut-off valve, which
shuts off the system once the pressure in the storage tank
reaches 2/3 of the incoming water pressure (your household
water pressure). When you open the faucet to draw water from
the storage tank, the pressure inside the tank drops and the
auto shut-off valve opens. The system then begins to operate,
replenishing the water you took from the storage tank. For
each gallon of water produced, 9 gallons are discharged as
reject water. The storage tank can hold up to
3.2 gallons of water at a time, more than enough for the
average family’s drinking and cooking needs.
When used under operating conditions specified on page 2 of
the manual, your Reverse Osmosis membranes should last
12–24 months.
NOTE: The PRO unit will indicate a need for a membrane
change with an amber light; see LIGHT INDICATOR
READINGs, page 10 for details.
The precise life span of your system’s membrane will depend
on the quality of the water entering the system and the
frequency with which you use it. Frequent use prevents the
dissolved salts from building up on the membrane as scale.
The more water the system is required to produce, the longer
the membrane will last. You may wish to find a variety of uses
for your system in order to prolong the life of the membrane.
The life of the membrane will also depend upon the regularity
with which you replace the prefilter cartridge in the system.
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