Consider using flexible PEX piping on your next plumbing project. It's easy to manipulate and installs quickly and economically.
PEX piping's ease of use makes it perfect for do-it-yourself plumbing projects.
Photo by Michael Maxwell
PEX can bend in any direction and will remain in a fixed position. Use a metal tube like this to prevent kinks when tight bends are required
For small jobs, compression fittings are the least expensive way to join PEX piping.
A PEX hub connection and its O-rings.
To learn how to connect PEX piping to existing copper pipes, see “Connecting to Copper.”
Unlike rigid piping that uses a straight-line network of pipes to deliver water to appliances and fixtures, PEX delivers constant pressure to all fixtures by directing water in one central tube to a hub, where water is then equally distributed in half-inch lines throughout the house.
Crimp-on connection rings are the most economical way to make a large number of PEX connections, but the crimping tool can cost several hundred dollars.
Valves and T-connections can be installed in PEX much more easily than in rigid piping.
Tools of the trade: A reaming tool (left) imparts a perfectly round shape to the inside of the PEX line, ensuring good connections. A specialized cutting tool supports the round profile of the plastic tube.
This crimping tool, which can cost several hundred dollars, is necessary to make PEX connections using crimp-on connection rings.