How Do You Build Plumbing? (Pro Tips)

If you’ve ever wondered how to get a shower or sink working in your home, then I’m here to help. The process isn’t hard and doesn’t require much skill, but it does require some work. Here’s how I built my own plumbing:

The ULTIMATE Plumbing Tricks BIBLE (30+ Tricks!)
Tips and tricks can help you successfully navigate plumbing projects.
Proper planning is key to avoiding costly mistakes in plumbing work.
Regular upkeep can help extend the life of your plumbing system.
Understanding common plumbing issues and how to troubleshoot them can save you time and money.
Consulting with a professional plumber is always a smart choice for complex plumbing projects.

Pipe the Drain

To install a drain, you first need to cut the pipe. You can use a hacksaw or pipe cutter, but if you don’t have either of those tools on hand, you can also use a tubing cutter. 

These tend to be more expensive than regular pliers; however, they’re the best way to ensure that your drain is properly measured and cut. Once your drain pipes are measured and cut, it’s time for installation!

The next step is connecting the P trap with your drain pipes in order for them all to work together as one unit. You’ll need an Allen wrench for this part but don’t worry about which size works best: any will do! 

All you need is something small enough so that it fits between two threads at once (without actually touching them), then twist until tight enough not just when turning clockwise but counterclockwise as well!

When running plumbing pipes, it’s important to plan ahead to avoid costly mistakes. Unified Haven’s pro tips on how do I run plumbing pipes can help guide you through the process with ease.

Install the P-Trap

The p-trap is a U-shaped pipe that prevents sewer gas from entering the house. It’s important to install this part of the plumbing so that it’s level with the floor and level with the drain (or waste line), otherwise you won’t be preventing sewer gas from escaping into your home.

Installing the P-Trap: Tips and Tricks

Measure carefullyBe sure to measure the distance between the drain and waste line to ensure a proper fit for your P-trap.
Dry fit firstBefore cementing any plumbing pieces together, perform a dry fit to make sure everything lines up properly and there are no leaks.
Use the correct cementUse only PVC cement to join plumbing pieces together as other types of cement won’t bond properly with PVC.
Check for levelUse a level to check that the P-Trap is installed level with the floor and level with the drain.
Tighten connections properlyBe sure to tighten all connections snugly to avoid leaks.

Run Pipes to the Shower

To connect the shower arm to your shower head, you’ll use a T-fitting. This is what allows you to adjust the water pressure and mix hot and cold:

Once everything is connected, tighten all joints with pipe dope. Make sure you have enough pipe to reach the shower head if not, add another length of pipe or use a flexible connector such as a slip joint before connecting it all together.

If there are any blockages in your plumbing system (like hair), use a snake tool to clear them out!

Building a plumbing system that is both functional and visually appealing requires an understanding of various pipe angles. Check out Unified Haven’s guide on what is a right angle plumbing pipe to learn more about this important plumbing feature.

Install the Shower Arm and Flange

Attach the Shower Arm to the Shower Valve

Attach the shower arm to the shower valve by tightening its nut. If you don’t have a wrench, you can use pliers.

Tighten until it’s secure and won’t move, but don’t over-tighten it! This can damage your pipes or other parts of your plumbing system if you do—so be careful!

Install the Mixer Valve

  • Install the mixer valve. This is the device that controls the water temperature, and it connects between your cold and hot water pipes.
  • Turn on your faucet to full blast, then turn off the water supply to your house (usually found in a closet under the sink).

Install a new mixing valve by twisting off the old one with adjustable pliers (if present) or gripping it with an adjustable wrench while turning counterclockwise as you hold onto another part of the fitting with pliers or vice grips. 

Then unscrew connectors from either side of its base using a screwdriver or adjustable wrench. The wires should be long enough to thread through holes in their corresponding side-by-side unions two 90s at least 18 inches apart so keep them organized so they don’t get tangled up during installation!

Proper ventilation is critical in any plumbing system, and identifying the location of your vent stack is an important first step. Check out Unified Haven’s tips on how do I find my plumbing vent stack to learn why it matters and how to locate it.

Cut Holes for the Faucet Handles and Spout

To cut the hole for your faucet, you’ll need to use a hacksaw. The diameter of the saw blade should match that of your faucet spout and handle.

Make sure to leave enough room around each piece so that it can be screwed in place without interfering with anything else in its vicinity (or hitting something else on its way through). 

For example, if you’re working with an old-school sink type where the hot/cold handles are separate from one another, keep in mind how close together they’ll be before cutting—it’s best not to put them too close together or they may become difficult to move independently of one another after installation!

If there isn’t enough space at first glance when looking at what you’ve got left behind once everything has been cut out then try moving either yourself or some furniture around so as not  to crowd things up too much while still allowing room for movement without bumping into anything else nearby.

Screw on the Handles and Spout

One of the most important steps in this whole process is making sure that the handles and spout are secure. 

They need to be on tight, so they don’t come off while you’re using them. They also need to point straight up and down, so they don’t fall out when you’re using them. 

And finally, make sure they aren’t loose or else it won’t be very pleasant when you go to turn them off or on!

Before beginning any plumbing project, it’s important to review the blueprints to ensure you understand the layout and potential challenges. Unified Haven’s guide on how do I find plumbing blueprints can help get you started on your next project.

Connect the Supply Pipes to Their Vales

After you’re sure the pipes are all in place, it’s time to connect them. First, you need to use a pipe wrench or a wrench with an adjustable head (depending on your needs) to tighten the connections. 

Be sure not to over-tighten or over tighten the connections; you want them tight enough so they don’t come apart easily, but not so tight that they cause damage to the pipe itself and strain on your hands when working with them later.

Next, cut each pipe down to size using a sharp knife and/or a hacksaw blade if necessary. Once again: don’t try this without proper safety equipment! Cutting metal can be dangerous if done improperly. 

Again: use goggles and gloves at all times when working with metal implements like knives or saws! Also remember that metal conducts heat faster than plastic does meaning it will get hot very quickly when exposed directly into water flowing through itself… so be careful out there!

Finally and most importantly make any necessary bends in each piece of piping using either a pipe bender or simple elbow joints depending upon where these bend points occur within an existing system design layout plan diagram sketch drawing schematic diagram flowchart map chart graph chart etcetera etcetera etcetera etcetera

Top 5 Plumbing Tools Every Homeowner Should Have

Pipe wrenchUsed for tightening and loosening threaded pipes and fittings.
Basin wrenchDesigned for tightening or removing nuts that hold faucets and other fixtures in place.
Teflon tapeA thin white tape that is wrapped around threads to create a tight, leak-free seal.
PlungerUsed to clear clogs in sinks, toilets, and tubs.
Drain snakeA flexible cable that is inserted into drain pipes to break up and remove clogs.

Connect the Plumbing With Flexible Hoses

Now that you have the plumbing parts in place, it’s time to connect them. The first thing to do is make sure the flexible hoses are connected correctly and securely. 

You should use teflon tape or some other type of sealant on each connection before tightening it with a wrench. 

This will ensure that no water can leak out when you turn on your faucet. If there’s an issue with the way your plumbing is set up, this step can save you from having to tear everything apart again!

  • Make sure you don’t kink or crimp any of your flexible hoses as they run through walls or floors.
  • Don’t over-tighten any of the connections; if they’re too tight, they could break off while under pressure from water flow and cause leaks under sinks and bathtubs (or wherever else these pipes might be located).

Plumbing issues can be frustrating to deal with, but many problems can be resolved without the cost of hiring a professional. Check out Unified Haven’s pro guide on how do I fix my plumbing to learn how to troubleshoot common issues and tackle simple plumbing repairs on your own.

Turn on the Water Supply and Test for Leaks

Now it’s time to turn on the water and test for leaks. If you find one, turn off the water supply and repair it. If there are no leaks, then it’s time to test your plumbing.

Your Plumbing Will Be Better If You Follow These Tips

To build plumbing, you need to know the different parts. Here are some tips on how to do this:

Plumbing comes in a variety of materials, including copper and plastic. Copper is more expensive but has a longer lifespan. Plastic can be used in situations where you don’t have access to heat or water because it’s notoriously resistant to breaking down when exposed to those elements.

The first step when installing plumbing is figuring out what kind of connections you’ll need for your project and picking up the necessary supplies at the hardware store. 

This step may seem self-explanatory but it’s important that you take care when measuring for pipes so as not to end up with an awkward fitting later on!

 If possible, always go with copper pipes because they’re much stronger than their plastic counterparts–and thus less likely breakage during installation or use over time.”


Now you know how to build plumbing, and it’s time to get started on your own project! You’ll be able to improve your home and save money by doing this yourself. 

You’ll also learn a lot about how plumbing works, which will make it easier for you in the future if there ever is something wrong with any part of your plumbing system again.

Further Reading

Here are a few more articles on plumbing that you might find useful:

Top Ten Plumbing Tips: Learn about important plumbing system components and tips for keeping your system running smoothly.

101 Plumbing Tips, Tricks & Advice You Need to Know: This comprehensive guide covers everything from diagnosing simple plumbing issues to tackling more complex repairs.

5 Plumbing Tips When Building a New Home: This article offers useful guidance for planning and installing a plumbing system in a new construction project.


What are some common plumbing problems?

Common plumbing problems include leaking faucets, clogged drains, running toilets, low water pressure, and water heater issues.

How can I prevent clogged drains?

You can prevent clogged drains by avoiding pouring grease or oil down the drain, using a drain stopper to catch hair and other debris, and flushing drains regularly with baking soda and vinegar.

When should I call a professional plumber?

You should call a professional plumber if you experience frequent plumbing issues, have a major leak or burst pipe, or need to install or repair plumbing fixtures such as water heaters, toilets, or faucets.

How can I increase water pressure in my home?

You can increase water pressure in your home by checking for and repairing any leaks, installing a pressure regulator, and replacing old or clogged pipes.

How often should I have my plumbing system inspected?

It’s a good idea to have your plumbing system inspected by a professional plumber at least once a year to check for any potential issues and ensure that your system is running efficiently.