Purenex Multipure Aquaperform For Model MP880SB - Manual (Page 20)

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Multi-Pure 90-Day Guarantee: Multi-Pure demonstrates its confidence in the performance of its Drinking Water
Systems by offering its 90 day money-back guarantee. If you should find the Drinking Water System unsatisfactory, let
us know within thirty days of purchase, and we will promptly exchange it or refund your money.
Multi-Pure Warranty: Multi-Pure Corporation warrants to the original retail customer its Drinking Water Systems and
components to be free of defects in material and workmanship for use under normal care, and will repair or replace any
System at no charge (excluding transportation to Multi-Pure headquarters) to the customer during the warranty period.
The Drinking Water System stainless steel housing is warranted for a lifetime (provided that filter has been changed at
least once per year); all exterior hoses and attachments to the System are also warranted for defects in material and
workmanship for one year.
Multi-Pure Solid Carbon Block Filters are warranted for defects in material and workmanship for use under normal care.
The capacity of the filter cartridge depends upon the amount of impurities in the water to be processed. For optimum
performance, it is essential that the Solid Carbon Block Filter cartridge be replaced annually or when it has processed its
listed capacity, whichever comes first.
Except as otherwise expressly provided above, Multi-Pure Corporation makes no warranties, express or implied, arising
by law or otherwise, including without limitation the implied warranties of merchantability and fitness for a particular pur-
pose, to any person. This limited warranty may not be altered, varied or extended except by a written instrument execut-
ed by Multi-Pure Corporation. The remedy of repair or replacement as provided under this limited warranty is exclusive.
In no event shall Multi-Pure Corporation be liable for any consequential or incidental damages to any person whether
occasioned by negligence of the manufacturer, including without limitation damages of loss of use, cost of substitution,
property damage, or other monetary loss.
Warranty is valid only if Drinking Water System is operated within conditions listed herein.
X I I . W a r r a n t y
Arsenic (abbreviated As) is a naturally occurring contaminant found in many ground waters. 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 certified labs. The cost is typically $15 to $30. Information about
arsenic in water can be found on the Internet at the U.S. 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.
Specially formulated Carbon Block systems are very effective 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 per-
manganate 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 find out if free
chlorine or combined chlorine is used in the water system.
The Multi-Pure MP880 Models are designed to remove only pentavalent arsenic. It will not convert trivalent arsenic to pen-
tavalent arsenic. The system may remove some trivalent arsenic, however, it has not been evaluated for its ability to remove
trivalent arsenic. The system was tested in a laboratory to remove pentavalent arsenic. Under lab conditions, as defined in
ANSI/NSF Standard 53, the system reduced 0.050 mg/L (ppm) pentavalent arsenic to 0.010 mg/L (ppm) (the U.S. EPA stan-
dard for drinking water) or less. The performance of the system may be different at your installation. Have the treated water
tested for arsenic to check if the system is working properly.
The Carbon Block filter component of the Multi-Pure MP880 system must be replaced as indicated in this Owner's Manual to
ensure the system will continue to remove arsenic and other contaminants.
X I I I . A r s e n i c F a c t s
(in compliance with NSF/ANSI Standard)