Coway CHP-590R - Arsenic Facts

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PERFORMANCE DATA SHEET | CHP-590L
Others
• For parts and service availability, please contact your local dealer or Coway.
• This system has been tested for the treatment of water containing pentavalent arsenic (also know as As(V),
As(+5), or arsenate) at concentrations of 0.050 mg/L or less. This system reduces pentavalent arsenic, but
may not remove other forms of arsenic. This system is to be used on water supplies containing a detectable
free chlorine residual at the system inlet or on water supplies that have been demonstrated to contain only
pentavalent arsenic. Treatment with chloramines (combined chlorine) is not sucient to ensure complete
conversion of trivalent arsenic to pentavalent arsenic. Please see the Arsenic Facts section of this Performance
Data Sheet for further information.
• Eciency rating means the percentage of the inuent water to the system that is available to the user as reverse
osmosis treated water under operating conditions that approximate typical daily usage.
• The product water should be tested every 6 months to ensure that the contaminants are being reduced
eectively. Please contact your local dealer or Coway to initiate this service.
• This reverse osmosis system contains a replaceable treatment components, critical for the eective reduction of
total dissolved solids and that product water shall be tested periodically to verify that the system is performing
properly. Replacement of reverse osmosis component should be with one of identical specications, as dened
by the manufacturer, to assure the same eciency and contaminant reduction performance.
• The estimated replacement time of lter, which is a consumable part, is not an indication of quality guarantee
period, but it means the ideal time of lter replacement. Accordingly, the estimated time of lter replacement
may be shortened in case it is used in an area of poor water quality.
Model of Filter Type Usable period (months)
CNFN14 NEO-SENSE FILTER 6
CRMFN14-50 RO MEMBRANE FILTER 24
CIFN14-PLUS PLUS INNO SENSE FILTER 18
CAF-03 ANTIBACTERIAL FILTER (option) * 12
ARSENIC FACTS
Arsenic (abbreviated As) is found naturally in some well water. Arsenic in water has no color, taste or odor. It must
be measured by a lab test. Public water utilities must have their water tested for arsenic. You can get the results
from your water utility. If you have your own well, you can have the water tested. The local health department or
the state environmental health agency can provide a list of certied labs. Information about arsenic in water can be
found on the Internet at the US Environmental Protection Agency website:
www.epa.gov/safewater/arsenic.html
There are two forms of arsenic: pentavalent arsenic (also called As(V), As(+5), and arsenate) and trivalent arsenic
(also called As(III), As(+3), and arsenite). In well water, arsenic may be pentavalent, trivalent, or a combination of
both. Special sampling procedures are needed for a lab to determine what type and how much of each type of
arsenic is in the water. Check with the labs in your area to see if they can provide this type of service.
Reverse osmosis (RO) water treatment systems do not remove trivalent arsenic from water very well. RO systems
are very eective at removing pentavalent arsenic. A free chlorine residual will rapidly convert trivalent arsenic
to pentavalent arsenic. Other water treatment chemicals such as ozone and potassium permanganate will also
change trivalent arsenic to pentavalent arsenic. A combined chlorine residual (also called chloramine) may not
convert all the trivalent arsenic. If you get your water from a public water utility, contact the utility to nd out if free
chlorine or combined chlorine is used in the water system.
The CHP-590L system is designed to remove pentavalent arsenic. It will not convert trivalent arsenic to pentavalent
arsenic. The system was tested in a lab. Under those conditions, the system reduced 0.050 mg/L pentavalent
arsenic to 0.010 mg/L (ppm) (the USEPA standard for drinking water) or less. The performance of the system may be
dierent at your installation. Have the treated water tested for arsenic to check if the system is working properly.
The RO component of the CHP-590L system must be replaced every 24 months to ensure the system will
continue to remove pentavalent arsenic. The component identication and locations where you can purchase the
component are listed in the installation/operation manual.
* The Antibacterial lter contains silver, which is known to inhibit the propagation of microorganisms and to
maintain the integrity of the lter.