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Did you know PuROMax has it’s own forum? Get help with your questions, talk to others in the field, and keep in touch with the most up to date info.
ARSENIC FACTS SECTION:
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. 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 arsenate). 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. Reverse osmosis (RO) water treatment systems do not remove trivalent arsenic from water very well. RO systems are very effective at removing pentavalent arsenic. A free chlorine residual will rapidly convert trivalent arsenic to pentavalent arsenic. A combined chlorine residual (also called chloramines) 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.
R/O systems are designed to remove pentavalent arsenic. It will not convert trivalent arsenic to pentavalent arsenic. 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 RO membrane (s) of the system must be replaced every 2-4 years to ensure the system will continue to remove pentavalent arsenic. |
Stricter labeling urged for bottled water
By EMILY FREDRIX, AP Food Industry Writer Emily Fredrix, Ap Food Industry Writer – Wed Jul 8, 7:41 pm ET
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H2-WHOA! Australian town bans bottled water sales
By KRISTEN GELINEAU, Associated Press Writer Kristen Gelineau, Associated Press Writer – 6 mins ago |
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Click on any of the news links below to view the article. You will be taken outside of our website. Hold shift and click on the link to open in a new window. |
Truth about bottled waterAbout 25 percent of bottled water comes from municipal water sources that flow to your tap. Find best-tasting water in America Choosing a good water filter 7/22/09
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HR-3 Permeate Pump |
