Product Information - RainSoft Ultrefiner II User Manual

Product Information

Your RainSoft Ultrefiner II system provides several stages of treatment to
provide you with the best possible drinking water.
The components of the system are:
Pre-Filter
The pre-filter is a combination carbon/sediment filter. It removes most
suspended solids 10 microns or larger in size and also reduces incoming
chlorine levels.
Ultrefiner II Membrane Cartridge
The membrane cartridge consists of a semi-permeable membrane
wound in a spiral to fit a large membrane area into a compact diameter.
This membrane filters on a molecular level and reduces dissolved inor-
ganic solids in the water such as lead, chromium and copper. It will also
reduce cysts, such as cryptosporidium, which have been known to cause
outbreaks of gastrointestinal illness. Since the filtration process is so
fine, the system continuously flushes water across the surface of the
membrane while producing drinking water. The incoming water stream
is split, with some water passing through the membrane as treated water
while the water that flushes the membrane to keep it clean flows to the
drain.
Air Pressured Storage Tank
Since the water passes through the membrane too slowly to satisfy your
instantaneous demand for water, the system includes a storage tank.
This storage tank contains a rubber bladder and is similar to the tank on
a well system, but smaller. Water passing through the membrane
("permeate") is sent to one side of the bladder, while the other side is
pressurized with air (about 8 psi when empty of water). As the tank fills
with water, the air is compressed, providing the pressure needed to
dispense the water when your drinking water faucet is opened. A
hydraulic shutoff valve built into the filter housing assembly automati-
cally turns off flow through the system when the tank is full, and turns
the water back on as the tank is emptied.
Post-Filter
When the water leaves the storage tank on its way to the faucet, it passes
through a carbon block post-filter. This filter is specially formulated to
reduce volatile organic compounds (i.e. VOC's); see the performance
data sheet for the specific VOC's this system is rated to reduce. VOCs
include compounds such as benzene, lindane, and trihalomethanes. The
post-filter also serves as a "polishing filter," the final step in removing any
tastes or odors.
Putting it all together, your RainSoft Ultrefiner II system gives you
multiple lines of defense to protect the drinking water your family relies
on.
Figure 1
OUTLET
TREATED
WATER TO
FAUCET
DRAIN TO
AIRGAP
WATER
STORAGE TANK
Figure 2
COUNTER
MOUNTED
FAUCET
INLET TO SYSTEM
DRAIN TO AIRGAP
STORAGE TANK
5-10 psi AIR CHARGE
POST-FILTER
PERMEATE WATER TO
STORAGE TANK
DRAIN
WATER OUT
TREATED
WATER TO
FAUCET
POST-FILTER MEMBRANE
INLET
UNTREATED
WATER TO
SYSTEM
MEMBRANE PRE-FILTER
UNTREATE
D WATER
IN
PRE-FILTER
3