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REVERSE OSMOSIS SYSTEM INSTALLER AND USER GUIDE
15. CERTIFICATES
Certificate NSF from the Water Quality Association (WQA), USA
System Certified by WQA to CSA B483.1, NSF/ANSI 372, and NSF/ANSI 58 for the reduction of the
contaminants listed on the performance data sheet, as verified and substantiated by test data
ISO 9001:2015 certificate
The quality management system for production of water treatment systems, domestic filters for water
purification and replacement filters, as well as sorbents for special application performed by Ecosoft
corresponds to the requirements of the State standard ISO 9001:2015.
Conformity certificate for the Ecosoft water treatment systems MO xxx
Confirms the conformity of the products with essential safety requirements of the EC New Approach
Directives.
This system has been tested for the treatment of water containing pentavalent arsenic (also known as
As(V), As(+5), or arsenate) at concentrations of 0.30 mg/L or less. This system reduces pentavalent arse-
nic, 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 chloramine (combined chlorine) is not sucient to
ensure complete conversion of trivalent arsenic to pentavalent arsenic. Please see the Arsenic Facts
section of this Performance Data Sheet for further information.
ARSENIC FACTS
Pentavalent vs.Trivalent Arsenic Removal
These systems are very effective at reducing pentavalent arsenic from drinking water. These models were tested in a
lab and proven to reduce 300 parts per billion (ppb) pentavalent arsenic to below 10 ppb, the USEPA stan-dard for safe
drinking water.
RO systems are not as effective at reducing trivalent arsenic from water. These models will not convert trivalent arsenic
to pentavalent arsenic. If you have free chlorine residual in contact with your water supply for at least one minute any
trivalent arsenic will be converted to pentavalent arsenic and reduced by this RO. Other water treat-ment 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 find out if free chlorine or combined chlorine is used in the water system.
Maintenance
It is strongly recommended that you follow the maintenance instructions and have your water tested periodically to make
sure the system is performing properly. See replacement element information above for recommenda-tions on maintain-
ing your Reverse Osmosis drinking water treatment system.
Background
Arsenic (abbreviated As) can occur naturally in well water. 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]. Al-
though both forms are potentially harmful to human health, trivalent arsenic is considered more harmful than
pentavalent arsenic. In well water, arsenic may be pentavalent, trivalent, or a combination of both. Addition-
al information about arsenic in water can be found on the Internet at the U.S. Environmental Protection Agency
(USEPA) website:www.epa.gov/safewater/arsenic.html.
Testing Your Water
Arsenic in water has no color, taste or odor. It must be measured by a lab test. Public water utilities must have their wa-
ter 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.
Характеристики
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