EcoWater ERO-375 Owner's Manual - For Iowa Use Only
28
Perflourochemical (PFC) Removal
*
Substance
Influent
(µg/L)**
Effluent
(µg/L)**
Percent
Reduction
Perfluorooctanoic acid (PFOA)
3
93.3
Perfluorooctane sulfonate (PFOS)
3
93.3
Perfluorobutanoic acid (PFBA)
10
98
PERFORMANCE DATA
* Tested by Minnesota Department of Health.
** Micrograms per liter, which is equivalent to parts per billion (PPB).
ARSENIC FACTS
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].
Although both forms are potentially harmful to human health, trivalent arsenic is considered more harmful than pentava-
lent arsenic. In well water, arsenic may be pentavalent, trivalent, or a combination of both. Additional 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 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.
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 standard 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 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 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 recom-
mendations on maintaining your Reverse Osmosis drinking water treatment system.
Models ERO-375-CP, ERO-375-BN, ERO-375-WH, ERO-375-BK, ERO-
375-RB, ERO-375E-CP, ERO-375E-BN, ERO-375E-WH, ERO-375E-BK,
ERO-375E-RB, HERO-375-CP, HERO-375-BN, HERO-375-WH, HERO-
375-BK, HERO-375-RB, and HERO-375Plus have been tested and certified
by NSF International against NSF/ANSI Standard 42 for the reduction of
chlorine, taste and odor, Standard 58 for the reduction of arsenic, barium,
cadmium, chromium (hexavalent), chromium (trivalent), copper, cysts, lead,
nitrate (as N), nitrite (as N), radium 226/228, selenium, turbidity and TDS.
EcoWater Systems LLC
P.O. Box 64420
St. Paul, MN 55164
www.ecowater.com
FOR IOWA USE ONLY
All sales in Iowa require the following signature before consummation of sale. These signatures must be retained by
seller/renter for 2 years minimum.
Buyer/Renter __________________________________________________________ Date _________________
Seller ________________________________________________________________ Date _________________
Seller’s Address _______________________________________________________________________________
Seller’s Phone No. _____________________________________________________________________________
– – – – – – – – – – – – – – – – – – – – – – – – –
"
Product: EcoWater Systems 375 Series
Reverse Osmosis Filter System (model
numbers are shown in the box at right)