PEX piping (shorthand for cross-linked polyethylene) costs less than half the price of copper and installs much faster. And since it’s flexible, PEX makes remodeling jobs easier. PEX has a strong ...

Q: I need to install some new water-supply lines in my home. I currently have copper. I’m intrigued by the plastic PEX material, but it seems too good to be true. Using PEX, I would only have a joint ...