Drinking Water System Safety - Maytag M-550 Operation And Service Manual

DRINKING WATER SYSTEM SAFETY

IMPORTANT: The Centers for Disease Control and Prevention (CDC) and the Environmental Protection Agency (EPA) have issued
guidance to people with severely weakened immune systems who may want to take extra precautions to reduce the risk of infection
with Cryptosporidium from drinking water. This guidance pertains to people with HIV/AIDS, patients receiving treatment for cancer,
recipients of organ or bone marrow transplants, transplant patients taking immunosuppressive drugs, and persons who have congenital
immunodeficiencies.
The EPA has stated that they do not know the significance of drinking water compared to other possible sources of Cryptosporidium to
determine how most people become infected. The CDC-EPA guidance suggests that immunosuppressed individuals discuss their risks
with their health care provider.
This drinking water system is tested and certified by NSF International to NSF/ANSI Standard 58 for cyst reduction. It meets NSF/ANSI
standard of reducing at least 99.95%* of cysts (including Cryptosporidium), however, because this is not 100%, immunosuppressed
individuals should take the extra precaution of boiling their drinking water. According to the CDC-EPA, bringing water to a rolling boil for
one minute is the most certain approach for killing Cryptosporidium.
All individuals should take adequate precautions when changing the filter cartridges, including protective gloves, to avoid direct contact
with the exhausted cartridges.
* For complete specifications, refer to the Performance Data Sheet.
NOTE: This drinking water system contains replaceable treatment components critical for effective performance. It is the user's
responsibility to, and the manufacturer strongly recommends that the user, periodically test the product water to verify the system is
performing satisfactorily. See the test kit(s) for sampling instructions.
NOTE: This system is acceptable for treatment of influent concentrations of no more than 27 mg/L nitrate and 3 mg/L nitrite in
combination measured as N and is certified for nitrate/nitrite reduction only for water supplies with a pressure of 40 PSIG (280 KPa) or
greater.
NOTE: This system confirms to NSF/ANSI Standard 58 for pentavalent arsenic reduction. See the Performance Data Sheet and Arsenic
Facts section for an explanation of reduction performance.
Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before
or after the system. Systems certified for cyst reduction
may be used on disinfected waters that may contain
filterable cysts.
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