PEX is cheaper than copper.Half-inch PEX tubing costs about one-third the price of copper. Some of the savings will go towards purchasing a special tool to install the fittings.

You may be faced with a decision when building a new home, or remodeling an existing one, about what type of water lines you ...

My inspector says I can use PEX pipe, and it seems too good to be true. I've never worked with PEX, but I have some experience sweating copper tubing. ... valve or manifold.

PEX water piping is much like electrical wiring. It's flexible, and you can run long lengths of it from a central distribution manifold all the way to the plumbing fixture without any joints.

This is what creates the leak-free connections between the PEX tubing and a manifold or a valve at the end of a run. To stretch the piping, you need a special tool that has an expanding cone tip.

The manifold method ensures you have no hidden joints or fittings hidden in walls or ceilings, but you end up using much more tubing material. Advertisement I’m a big believer in PEX.

DEAR TIM: I’ve got a major bathroom remodel I’m jumping into, and luckily I’m allowed to do the plumbing work myself where I live as long as it meets code. My inspector says I can use PEX ...

Pex is also highly resistant to corrosion and scale buildup, which are common issues with copper pipes. However, the material is not suitable for outdoor use as it can be damaged by exposure to UV ...