Watts PWRO4ZRO Installation, Operation And Maintenance Manual page 2

Introduction
Thank you for your purchase of a state of the art Watts Reverse
Osmosis (RO) water treatment system. Water quality concerns are
becoming more of a focus for the public . You may have heard about
contaminants in the drinking water, such as Arsenic, Chromium,
Cryptosporidium or Giardia . There may also be some local water
issues such as high levels of Lead and Copper . This Watts water
treatment system has been designed and tested to provide you with
high quality drinking water for years to come . The following is a brief
overview of the system .
Your Reverse Osmosis System:
Osmosis is the process of water passing through a semi-permeable
membrane in order to balance the concentration of contaminants
on each side of the membrane . A semi-permeable membrane is a
barrier that will pass some particles like clean drinking water, but not
other particles like arsenic and lead .
Reverse osmosis uses a semi-permeable membrane; however, by
applying pressure across the membrane, it concentrates contami-
nants (like a strainer) on one side of the membrane, producing crystal
clear water on the other . This is why RO systems produce both clean
drinking water and waste water that is flushed from the system . This
reverse osmosis system also utilizes carbon block filtration technol-
ogy and can, therefore, provide a higher quality drinking water than
carbon filtration systems alone .
Your system is a 4-Stage RO which is based upon separate
treatment segments within the one complete water filtration system .
These stages are as follows:
Stage 1 – Sediment filter, recommended change 6 months.
The first stage of your RO system is a five-micron
sediment filter that traps sediment and other particulate
matter like dirt, silt and rust which affect the taste and
appearance of your water .
Stage 2 – Carbon filter, recommended change 6 months.
The second stage contains a five-micron carbon block
filter . This helps ensure that chlorine and other materials
that cause bad taste and odor are greatly reduced .
Stage 3 - Membrane, recommended change 2-5 years.
Stage 3 is the heart of the reverse osmosis system, the
RO membrane . This semi-permeable membrane will
effectively take out TDS, Sodium and heavy metals such
as arsenic, copper, and lead*, as well as cysts, such
as Giardia and cryptosporidium . Because the process of
making this high quality drinking water takes time, your RO
water treatment system is equipped with a storage tank .
Stage 4 - Carbon in-line filter, recommend change 6 – 12
months.
The final stage is an in-line granular activated carbon
(GAC) filter . This filter is used after the water storage tank,
and is used as a final polishing filter .
Replacement Filter Packs
MODEL FREQUENCY
PWFPKSEDCB 6 Months
PWFPK4RO4 Master Filter Kit
PWMEM50 2 - 5 years
PWILGAC10 Annual
NOTICE
Water conditions may require more frequent cartridge replacement
*Not Tested by WQA
DESCRIPTION
Includes sediment and carbon filter only
Includes all filters and membrane
50 gpd membrane
10" final in-line filter
System Maintenance
Just because you can not taste it, does not mean that it is not there .
Contaminants such as lead, chromium and arsenic (to name a few)
are undetectable to the taste . Additionally, over time if you do not
replace the filter element, other bad tastes and odors will be
apparent in your drinking water .
This is why it is important to change out your filter at the recom-
mended intervals as indicated in this system manual . When replacing
the filter elements, pay special attention to any cleaning instructions .
Should you have any further questions please refer to our website
at www.watts.com or call our customer service department at
1-800-224-1299.
With proper installation and maintenance, this system will provide
you with high quality water for years to come . All of Watts water
enhancement products are rigorously tested by independent
laboratories for safety and reliability . If you have any questions or
concerns, please contact our Customer Service department at
1-800-224-1299 or refer to our on-line troubleshooting at
www.watts.com/purewater
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