Tuesday, August 5, 2008

Can Epoxy Lining Prevent Lead Contamination from Water Pipes

By Dr. Dave Dunn


During the 19th and early 20th century lead was widely used in major U.S. cities for water pipes because of its durability and malleability. Lead pipes were eventually superseded by galvanized steel and copper, and copper pipe became the predominant material selected for domestic water service and distribution in post-World War II residential construction.

Pipe corrosion and erosion-caused lead contamination, was the top source of lead-related health issues before the hazards of ingesting lead were realized. Stillbirth and high infant mortality were two of the worst effects of lead ingestion. Many other plumbing or pipe problems are easy to detect by seeing or listening, but without specifically testing for it, there is no way to detect lead in your water. The EPA offers general information about lead contamination and how to test for it on its website.

If your water is lead contaminated, it's most likely because of one or more of the following: lead service line pipe(s) connecting your house to the municipal water main, lead-based solder (used to join copper pipes), and brass or chrome-plated brass faucets. In 1986, Congress banned the use of lead solder containing greater than 0.2% lead, and restricted the lead content of faucets, pipes and other plumbing materials to 8.0%.? This so-called ?lead-free? brass can still legally contain up to 8% lead and plumbing systems installed prior to 1986 can contain high levels of lead from both plumbing components and lead solder.

Water lines from the city or town water main to a home or building?s water system may be a lead pipe in older structures. If you or a previous owner of the structure had your plumbing system upgraded since 1960, it?s probably composed of galvanized pipe. Galvanized pipe doesn?t need lead solder to be joined. Faucets need to be checked for brass or chrome-plating, you?re the original manufacturer, a local hardware store, or a licensed plumber should be able to tell you if yours contain either.

Once installed, epoxy pipe lining is a barrier to prevent lead leaching from your pipes into your drinking water. The epoxy lining prevents the water going through the pipe from coming into contact with the metal of the pipe, the chemical reaction that creates pipe corrosion is prevented. Epoxy pipe lining will prevent lead and other metals (from your pipes) from getting into your water. The lining also prevents other poor water quality issues, for example: red, brown, blue or yellow water, zinc or iron leeching from galvanized pipes into your water, causing a metallic taste, and bacteria can cause terrible tasting or smelling water.

A relatively unknown technology, epoxy pipe lining is not a new technology, --in fact it?s well proven. The U.S. Army Corps of Engineers and U.S. Navy have both ested and approved the use of epoxy pipe lining to prevent contaminants, including lead, from leaching into drinking water. Their reports are published and links to them can be found at http://curaflo.com/CuraFlo/ResourceCenter. The epoxy used by CuraFlo in epoxy pipe lining, CuraPoxy?, is certified to meet the U.S.

There is no need for health concerns when it comes to epoxy lining your pipes, CuraFlo?s epoxy, CuraPoxy?, is certified to meet ANSI/NSF Standard 61 - the U.S. government standard for safe potable (drinking) water. ANSI/NSF Standard 61 certification means that something is certified safe to be used in potable water pipes at temperatures up to 180? Fahrenheit or 82.2? Celsius. CuraFlo?s epoxy pipe lining process protects you from lead (and other metals) in your pipes leaching into your water by preventing these metals from leaching into your water.

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