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Lead and Copper are found in drinking water due in part to leaching from piping and fixtures. Leaching can be greatly reduced by introducing certain NAPCO Phosphates into potable water distribution systems. At low parts-per-million levels the phosphates react with the lead and copper ions to form an insoluble coating on the internal surfaces of the distribution system. Once this coating is formed observed lead and copper levels in the drinking water drop rapidly. This effect can be maintained by continued metering of phosphates into the system. Products that NAPCO offers to produce these results are::
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