Eric Aune walks through how plumbers handle transitions between different piping materials during remodels and additions. He covers the most common systems homeowners encounter—copper, CPVC, and PEX—along with threaded pipe found in older houses, and explains why PEX has become the standard choice for new plumbing work. Eric demonstrates several connection methods, including compression fittings, solvent-welded joints, push-to-connect fittings, and press connections, weighing the tradeoffs between cost, speed, and reliability for each. He also touches on using brass fittings to avoid corrosion when joining dissimilar materials, and how tool availability and skill level often shape which transition method makes the most sense for a given job.

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