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How do I tell the difference between lead and iron plumbing?

April 26, 2017difference iron lead plumbing

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How do I tell the difference between lead and iron plumbing?

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Lead is a softer metal than iron and scratches easily. Try scratching the pipe with a key or screwdriver. Lead pipe will be dull gray in color, but the scratch marks will appear bright silver. Solders and flux are considered lead-free when they contain no more than .2 percent lead. In the past, solder normally contained about 50 percent lead. Pipes and fittings are considered lead free when they contain no more than eight percent lead.