Which method is approved for joining copper pipework to lead pipework?

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Multiple Choice

Which method is approved for joining copper pipework to lead pipework?

Explanation:
Joining copper to lead pipes with a mechanical compression fitting is the approved method. It uses a nut and olive to squeeze tightly onto the copper and seat against the lead pipe, creating a leak-tight seal without heating either metal. This is important because heat-based methods like soldering or brazing can affect lead pipes, risk damaging them, and—if lead-containing solders are involved—raise health concerns. Gluing isn’t suitable for potable water because it can’t provide a durable, pressure-rated seal. The compression approach handles the dissimilar metals safely and allows future disassembly if needed.

Joining copper to lead pipes with a mechanical compression fitting is the approved method. It uses a nut and olive to squeeze tightly onto the copper and seat against the lead pipe, creating a leak-tight seal without heating either metal. This is important because heat-based methods like soldering or brazing can affect lead pipes, risk damaging them, and—if lead-containing solders are involved—raise health concerns. Gluing isn’t suitable for potable water because it can’t provide a durable, pressure-rated seal. The compression approach handles the dissimilar metals safely and allows future disassembly if needed.

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