How to Install an Outside Faucet with PEX: A Step-by-Step Guide

Installing an outside faucet can be a handy addition to your home or garden. Whether you want to water your plants or clean the exterior of your home, an outside faucet can help you get the job done quickly and easily. However, the process of installation can be a bit challenging, especially if you are doing it for the first time. In this comprehensive guide, we will walk you through the process step-by-step, so you can install an outside faucet with PEX like a pro.

PEX or Cross-Linked Polyethylene is a popular material used for plumbing in recent times. It is a flexible tubing that can withstand high temperatures and pressure, making it an ideal choice for outdoor faucets. Unlike copper or PVC pipes that require an intense installation process, PEX tubing can be installed quickly and easily, even for those with little to no experience in plumbing. Keep reading to learn how to install an outside faucet with PEX using our step-by-step guide.

Quick Summary
To install an outside faucet with PEX, follow these simple steps: First, turn off the water supply and drain the pipes. Then, remove a small section of the siding and mount the backing plate. Connect the PEX tubing to the backing plate with a crimp ring and a PEX fitting. Install the valve assembly and the faucet onto the backing plate and mount the trim plate over it. Finally, turn on the water supply and check for any leaks.

Gather All Necessary Materials and Tools for the Job

To install an outside faucet with PEX, you need to gather all necessary materials and tools before starting the installation process. This will not only ensure that the process runs smoothly but will also save you from extra trips to the store. The primary material required for the job is PEX tubing, which is a flexible and durable type of plastic pipe. You will also need a PEX crimping tool, which is used to connect the PEX tubing to the fittings.

Other materials you will need include a PEX cutting tool, fittings, a handful of screws, and a wall-mounted faucet kit. The tools you need are pretty standard, and you may already have them handy. These include a drill, drill bits, a pencil, measuring tape, and a level. Having all of the materials and tools in one place before you start will help you to save time and effort, and ensure that you have everything you need to do a good job.

Shut Off Water Supply and Remove Existing Faucet

Before installing a new outside faucet with PEX, you must first ensure that the water supply is turned off. This will prevent any excess water from flowing into the pipes and causing a mess while you work. Locate the main water shut off valve in your home and turn it off. If your home has a water meter, you can turn it off there instead. Also, it is always a good idea to run the faucet outside to ensure all water in the pipes is drained.

Now that the water supply is turned off, you need to remove the existing faucet. Start by removing the screws or nuts that hold the faucet in place using a wrench. Once all the screws or nuts are removed, gently pull the faucet away from the wall. You may need to use a putty knife to help loosen any caulk or adhesive holding the faucet in place. Have a bucket handy to collect any excess water that may come out of the pipes. With the old faucet removed, you are now ready to install a new one using PEX pipes for a secure and durable installation.

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Prepare PEX Tubing and Attach to Faucet

In this section of the article, we will be discussing the steps you need to take to prepare the PEX tubing and attach it to your faucet. To prepare the PEX tubing, you will need a PEX cutter or a sharp knife. Measure the length of tubing you need from the faucet location to the nearest PEX connection point. Mark the tubing at the desired length with a marker.

Now, using the PEX cutter or knife, cut the PEX tubing to the marked length, taking care to make a clean and straight cut. Once the tubing is cut, insert one end onto the faucet outlet and secure it with a crimp ring. Attach the other end of the PEX tubing to the main PEX line with another crimp ring. Make sure the connections are tight and secure before proceeding to the next step. With these steps, you are now ready to move on to the next stage and install the faucet itself.

Secure and Route PEX Tubing to Water Supply Line

Once you have drilled the hole and inserted the faucet, it’s time to secure and route the PEX tubing to the water supply line. First, cut the PEX tubing to the length you need using a PEX cutter. Make sure that you cut it as straight as possible to avoid leaks. Next, connect the PEX tubing to the water supply line using a male threaded adapter. Make sure to tighten it with pliers until it’s securely in place.

Now it’s time to route the PEX tubing to the outside faucet. Keep in mind that you want the tubing to be as straight and direct as possible to prevent kinks and pressure losses. Use PEX clips to secure the tubing to the wall or ceiling, with a maximum distance of 32 inches between each clip. If you need to make any bends, use a PEX bending tool to avoid any kinks in the tubing. Once you have routed the tubing to the right location, connect it to the outdoor faucet with a PEX fitting and tighten it with pliers. Double-check for any leaks and turn on your water supply to enjoy your new outdoor faucet!

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Install Backflow Prevention Device and Faucet Mounting Plate

The backflow prevention device is an essential component in any outdoor faucet installation. It helps prevent any unwanted water from flowing back into your home’s water supply, making it safe to use the faucet without any worries. The device is easy to install, and you can simply thread it on the end of your PEX pipe.

Next, you need to install the faucet mounting plate securely onto the outside wall. This plate acts as a sturdy foundation to mount the faucet, preventing it from wobbling or moving around. You need to drill two holes into the wall, aligning them with the mounting plate holes. After inserting two screws, you can attach the faucet mounting plate with it and make sure it is leveled. Once the plate is securely in place, you can attach the faucet to the plate and secure it tightly with screws. With the backflow prevention device and faucet mounting plate in place, you’re now ready to connect the PEX tubing and complete the installation.

Connect Faucet to PEX Tubing and Test for Leaks

Before connecting the faucet to the PEX tubing, ensure that the area around the faucet is clean and dry. Slide a crimp ring onto the end of the tubing, then insert the tubing into the threaded end of the faucet. Make sure the tubing is firmly seated in the fitting before crimping the ring. Use a crimping tool to compress the ring onto the tubing. Repeat the process for the other end of the tubing, connecting it to the PEX fitting installed on the interior wall.

Once the faucet is connected to the PEX tubing, it’s time to test the system for leaks. Turn on the water supply and carefully inspect all connections for signs of water leakage. If there are leaks, turn off the water supply and check that all connections are secured and the crimp rings are properly compressed. Make any necessary adjustments before testing again. Once the connection is leak-free, you can use the new outside faucet for all your outdoor watering needs.

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Proper Maintenance and Care for Your Outside Faucet

Proper maintenance and care are essential for the longevity and functionality of your outside faucet installed with PEX. Regular inspections of the faucet and its components can help detect any signs of damage or leaks. A leaking faucet can result in significant water loss and can also lead to costly repairs. So, it is crucial to fix any identified problems as soon as possible.

Additionally, during winter months, it is vital to properly winterize and protect your outside faucet from freezing temperatures to prevent bursting. This involves disconnecting and draining the hose, turning off the water supply, and insulating the faucet with a cover or wrapping it with a towel or blanket. By following these simple tips, you can ensure that your outside faucet operates efficiently and safely year-round.

The Conclusion

Installing an outside faucet with PEX might seem like a daunting task, but it can be done easily with the right tools and knowledge. PEX is a great alternative to traditional materials like copper or PVC because it is lightweight, flexible, and resistant to corrosion. Before you begin the installation process, make sure to obtain all necessary permits and check your local building codes.

To summarize, installing an outside faucet with PEX requires a few key steps: preparing the work area, cutting the PEX tubing to the correct length, connecting the PEX tubing to the faucet using a fitting, and securing the tubing with clamps. With the right tools and attention to detail, you can have a functional and reliable outdoor faucet in no time. Happy plumbing!

Further Reading: Best Faucet Filter System: Keep Your Drinking Water Clean and Safe

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