Kitchen sinks, toilets, laundry machines, lawn sprinklers—if it uses water, a plumbing infrastructure making use of residential plumbing pipe supports it. Depending on what system it serves, a ...

Most of us don’t spend a lot of time thinking about our home’s plumbing system. We open a faucet, take a shower, or flush a toilet without much thought—or understanding—about how it all works.

If you’ve never heard of polybutylene piping, chances are you’ve never needed a major plumbing renovation in your house. Polybutylene is often called “poly,” “Poly B,” or “PB ...