Home » DIY FAQs » Plumbing » Working with Pipe » I need to retrofit some plumbing lines. What are the advantages of choosing plastic (CPVC) pipe over copper?

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First, it’s traditionally about half the price of copper. Second, it’s not affected by the pH conditions of water or soil. Copper can fail if water or soil conditions are too acidic. Drawbacks include that CPVC expands and contracts with temperature swings and the solvent welding process does emit VOCs as it cures.

 

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