PEX-AL-PEX pipe and brass press fittings laid out together, the pipe-and-fitting system a buyer specifies as one order

PEX-AL-PEX Fittings: Press Profiles, Prep and Why Joints Leak

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PEX-AL-PEX behaves like a metal pipe wearing a plastic coat, and that is exactly why its joints fail in ways plain PEX joints never do. A single-layer PEX barb forgives a rough cut because the pipe wall is soft enough to swallow it. Composite pipe does not forgive anything: there is a welded aluminium tube […]

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