How to Extend Faucet Supply Line – 9 Easy Steps to Extend Faucet Line


Before you expand the faucet in your kitchen, You must know how to extend the faucet supply line. After removing the faucet, you must replace the pipes by replacing them with new ones. You can then quickly increase water flow by adding additional items like sprayers or other sprayers to the faucet. The addition of an extension to the kitchen faucet could be handy. It is possible to add sprayers and extend 360-degree faucets using it. A clear and precise guideline will be a better option in that situation. There are a few things to consider when you’re looking for how to extend faucet supply line. Let’s get started!

How to extend faucet supply line

A faucet with a supply line that is too short will not perform. Every installation layout is likely to differ, which means how long the tube that connects to the fixture is crucial. If the tube is too long, it will be necessary to adjust, or the faucet will cease to function. What should you do? The most crucial thing to do is to measure everything to make sure you are aware of the situation. This is crucial when learning ways to expand a faucet’s supply line. To extend the supply line of a faucet, you must measure the required gap. After that, purchase two 3/8”x3/8 compression couplings and two stainless braided steel hoses. Connect them to the end of supply lines, and recheck the length.

The line should be ready to go. It’s a straightforward fix that will not take too long after all the components are in your possession. The supply line for faucets is designed with the concept of making adjustments in the mind. Since every circumstance will be individualized following the design, you have in front of you. Take off the couplings for compression and adjust to the proper length for the supply line to the faucet. Now, we will provide more information about how to extend faucet supply line.

Read now: How to repair low pressure in a kitchen faucet

Step 1

Start by cleaning all edges of the faucet. Then put a towel on top. Place the pan or bucket on top of the towel to catch the water that has escaped from the pipe.

Step 2

If you use an electric line that connects to your sink, shut off the heating. It could be the Hot water line or another line. After that, you must shut off the main water valve. There are occasions when you encounter problems if your sinkhole is more minor. You’ll need to make it more prominent in this instance. Shut off the cold and hot water valves. Pull the faucet’s handles to ensure there isn’t water inside the pipe.

Step 3

You must now disconnect the water supply lines to the tap. Make use of the adjustable wrench for loosening the nuts inside the valves. After you have removed the pipes, then use the bucket to remove the rest of the water that has escaped from the pipes that have been disconnected. If the valve is leaking water, it’s most likely an issue with the valve. It may also be necessary to change the valves in this situation.

Step 4

Then, remove the old supply lines connecting to your faucet. Then, drag the connection of the supply line using the basin wrench. We recommend that you do not reuse the pipes you used to have. You can cut the pipe using the tubing cutter.

Step 5

It is now time to loosen your mounting nuts. If you’ve got a single-handle faucet, it’s connected to one shank with hot and cold pipes for water supply. When the nuts for the mount are tough to open, apply penetrating oil to remove the nut. After removing the mounting nuts, take out your faucet and sink. Then, wash the area thoroughly using an appropriate cleaner.

Step 6

There are a variety of kinds of taps. Here, we’re providing a single-handle faucet extension. The cold and hot supply lines and install them on the faucet directly. These supply lines are equipped with a diverter which can be connected to with an extension of the supply line. Put a gasket for the faucet into the spout’s base and place it on top of all the supply lines. Check that all the parts work correctly.

Step 7

Place your faucet onto the surface of mounting. Then, go beneath the faucet to ensure the mounting nuts are tightened. Make use of your pipe wrench for it. If the hardware you are using to mount your pipe does not match ours, check the manual for the user. While doing this, be sure that you have someone in charge of the faucet who can line it correctly.

Step 8

It’s time to join these lines to one of the primary supply lines. To make this happen, wrap Teflon tapes before attaching them to the lines using the connecting nuts. Make sure you connect the lines differently from the cold water and the hotline. Attach the nuts using your hands and then tighten them using the adjustable wrench. You can now apply an additional supply line to add sprayers and other items.

Step 9

Imagine you wish to install an extension of a sprayer. Place it into the sinkhole after installing the supply lines to your faucet and the sprayer hose. Connect the nut to the tap using an adjustable wrench. Then, connect the pipe from the sprayer to the hose. There will be an adapter for faucets in the supply lines. Attach the tube to that.

How to connect faucet supply lines together

If you’re looking for tools, it’s best to own the basin wrench. It’s a fun appearance, a long-handled twist with plumbers’ largemouth to remove and install faucets. The handle’s length allows you to get into places that aren’t accessible within the tight spaces under sinks using standard wrenches or even pliers. It’s unlikely that you’ll need the basin wrench frequently, but for a cost of between 10 and 20 dollars, you’ll be thankful that you invested the money when it’s time to utilize one. The remainder of the task of connecting two faucet supply lines is completed by hand only when you introduce an item known as a sink the nipple or a push-fit plumber fitting.

The nipple can be described as a piece of pipe that has male threads on each end, used to join two female threaded fittings, pipes or fittings. A push-fit fitting does precisely what it sounds like and is put into the pipe’s ends which need to be connected. A ring of spurs made of metal grasp the pipe’s edge in which they are pushed. They make it easy to connect pipes without solder, clamps or glue. The female threaded part relates to a male fitting that secures the line.

Making the connection of water supply lines  

The easiest method to connect the water supply lines of faucets is to use compression fittings. Take note of the diameter of your lines, and then purchase the exact compression fitting to connect them. Your local hardware store might offer a range of fittings that can be used for this purpose and, indeed, plumbing supplies and the large DIY stores will. Connect the pipes that supply water by using these fittings. Standard fittings are among the widespread kinds and are commonly employed.

However, fittings with push-in connections are also a possibility, but they aren’t required for copper tubes. Compression fittings are straightforward to install and are effective in areas where pipes are damp, preventing soldering and only require periodic maintenance. They aren’t as long-lasting as soldered fittings, and they have a higher chance of leaks. However, they are ideal for the task. Click here to learn about fixing ruined finish on faucet.

How to extend faucet supply line: Tips

  • Shut off the water. Get your work equipment, including safety goggles and gloves. Make sure you have a bucket.
  • Take the lines out of the bucket.
  • Find out which line is cold and hot.
  • To make flexible water supply lines, install your faucet and wrap the threaded ends with several tape sheets. Screw the threaded ends and then use a compression fitting to connect it to the supply line on the wall.
  • Connect them with compression fittings for non-flexible water supply lines like copper or rigid plastic tubes. Simply bend and position the pipes to align them. Install the push-fit fittings to plastic lines and join them with these compression fittings.
  • Switch the water supply back on and look for leaks.


That’s it! This is how to extend faucet supply line. If you are looking to expand the supply lines, it is the ideal method to go about it. This guide should aid you in expanding the supply lines of your kitchen faucet. Best of luck!

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