If you are replacing old polybutylene plumbing, upgrading the plumbing, doing a kitchen renovation or bathroom remodel, or have been the victim of copper pipe theft, your plumber has probably given you several options for what type of pipe to install. These days, the two most common types of pipe are traditional copper pipe or modern PEX pipe. Both have their advantages so the “right” choice depends on your situation and personal preference.
Copper pipe has been used in plumbing for decades. It has proven to be a very durable, user friendly pipe for hot and cold water distribution lines. It will last a very long time but like all metals, it will someday corrode. It is very sturdy and resists punctures and can be installed indoors and outdoors. The copper in the pipe makes it highly resistant to bacteria growth.
The primary drawback to copper pipe is that it is very expensive. In addition, the value of copper makes it a prime target for criminals who have been known to cause thousands of dollars in damage to homes by tearing out the copper pipes. Copper pipe is inflexible and can burst in below freezing weather. Finally, it takes a certain level of skill to work with copper pipe.
PEX is a type of plastic pipe that is very durable and much less expensive than copper pipe. It is very flexible and comes in long lengths which means that your plumber does not have to install any fittings to make it bend or go around corners. Fewer fittings means fewer opportunities for leaks to start. It can expand enough that it is far less likely to burst in freezing weather.
The disadvantages of PEX are that it is not recyclable and since it is affected by UV rays, it cannot be used outdoors. Also, installing PEX requires special tools. Your plumber can help you decide whether copper or PEX is the best choice for your plumbing project.
