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49-50322
Using the Reverse Osmosis System
USING THE REVERSE OSMOSIS SYSTEM: How the System Works
How the Reverse Osmosis System Works
Reverse Osmosis reduces Total Dissolved Solids (TDS) and organic matter from water by diffusing it through a special
membrane (see Performance Data Sheet). The membrane separates minerals and impurities from the water and they
are flushed to the drain. For the reduction of the claims specified, see Performance Data Sheet. High quality product
water goes directly to the drinking water faucet or to the storage tank. The system makes a good supply of drinking
water each day. How much it makes depends on the feed water supply pressure, temperature and quality.
The prefilter and postfilter are replaceable cartridges. The carbon prefilter reduces chlorine while also filtering
sediments. The postfilter reduces any other undesirable tastes and odors before you use the water.
These systems include an electronic faucet assembly with a prefilter and postfilter change reminder, Reverse Osmosis
membrane change reminder and a status okay reminder.
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used. When this occurs, it is time to replace these cartridges and sanitize the system.
The membrane change reminder flashes amber when the TDS monitor in the system has measured the amount of
impurities removed is less than 75%. When this occurs, it is time to replace this Reverse Osmosis membrane cartridge
and sanitize the system.
Finally, a green flashing light will indicate the system is functioning properly.
Description of the Reverse Osmosis System
Prefilter - Water from the cold supply pipe is directed
to the prefilter cartridge. The prefilter is a replaceable
sediment cartridge containing activated carbon. The
prefilter reduces chlorine taste and odor in the feed
water because CHLORINE DESTROYS THE REVERSE
OSMOSIS MEMBRANE. Filtered, clean, chlorine-
reduced water flows from the prefilter to the Reverse
Osmosis cartridge.
Reverse Osmosis Cartridge - The middle
cartridge includes a tightly wound, special membrane.
Water is forced through the cartridge where the
membrane reduces the dissolved solids and organic
matter. For the reduction of the claims specified, see
Performance Data Sheet. High quality product water
exits the Reverse Osmosis cartridge and goes to the
storage tank. Reject water, with the dissolved solids and
organic matter, leaves the cartridge and is discharged to
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Postfilter - After leaving the storage area, but before
going to the system faucet, product water goes to the
postfilter cartridge. The postfilter is also a replaceable
sediment cartridge that contains activated carbon.
Any remaining tastes, odors or sediments are reduced
from product water by the postfilter. Clean, high quality
drinking water flows through the tubing and to the
system faucet.
Storage Tank - The storage area holds up to 2-1/2
gallons of product water. A diaphragm inside the tank
keeps water pressurized, when the tank is full, for fast
flow to the faucet when drinking water is needed.
Check Valve - The check valve prevents a backward
flow of product water from the storage tank. A backward
flow could cause the Reverse Osmosis membrane to
rupture.
Automatic Shutoff Assembly - To conserve
water, the drinking water system has an automatic
shutoff. When the storage tank has filled to capacity and
the drinking water faucet is closed, pressure closes the
shutoff. Water flow to the Reverse Osmosis housing is
shut off until drinking water is used again, and pressure
drops in the Reverse Osmosis system.
Flow Control - The flow control regulates the flow
of water through the Reverse Osmosis cartridge at the
required rate to produce high quality water. The control
is located in the 1/4” drain line exiting off the manifold.
Faucet and Electronics -
The countertop faucet dispenses filtered drinking water
when opened. It has a hand-operated lever, with variable
flow adjustment. You can keep the faucet open by
removing your hand from the lever once water is flowing.
To comply with plumbing codes, an air gap is built into
the faucet drain water connection.
The electronic
faucet provides a
six month timer to
remind you when
it is time to replace
your prefilter and
postfilter. Replace
these when the
amber filter light
flashes. The faucet
also provides an
amber RO light
indicating when the
Reverse Osmosis
cartridge is no
longer filtering out
at least 75% of the
TDS. Replace this
cartridge when this
amber light flashes.
The green flashing
light will indicate the system is
functioning properly.
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