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Shower Drain For Concrete Slab

Are you planning to install a shower in your home or remodel your existing bathroom? If so, you may need to install a shower drain in your concrete slab.

This can seem like a daunting task, but with the right tools and knowledge, you can do it yourself and save money on professional installation.

First, you’ll need to prepare the area by choosing the right type of shower drain and measuring and marking the cutout area.

Then, you’ll need to cut through the concrete slab and create a slope towards the drain.

After connecting the drain pipes and testing for proper functioning, you’ll need to seal the drain to prevent leakage.

With a few finishing touches, you can have a professional-looking shower drain that will last for years to come.

Keep reading to learn more about the steps involved in installing a shower drain for a concrete slab.

Preparing the Area for Installation

Before getting started, make sure the area’s prepped and ready to go – you don’t want any surprises creeping up on you mid-installation!

Start by removing any debris or dirt from the area surrounding the shower drain. You can use a shovel or a vacuum cleaner to get rid of any excess dirt or debris.

Next, use a level tool to ensure that the area where you’ll be installing the shower drain is level. If it’s not level, you’ll need to add or remove some concrete to level it out. This is important because if the area is not level, water won’t flow towards the drain and will collect in the wrong areas.

Lastly, before you start installing the shower drain, make sure you have all the necessary tools and equipment. You’ll need a hammer drill, a chisel, a saw, and a trowel, among other tools. Make sure you have everything you need before you start so you don’t have to stop midway through the installation.

With the area prepped and ready to go, you can now begin installing the shower drain for your concrete slab without any hiccups!

Choosing the Right Type of Shower Drain

Picking the perfect type of drain is crucial for a smooth and enjoyable shower experience. There are a variety of shower drains to choose from, each with its own set of advantages and disadvantages.

One of the most popular types of shower drains is the linear drain. Linear drains are typically installed against the shower wall and are long and narrow. They’re excellent for those who want a clean and modern look, and they’re also great for those who want to avoid having a center drain that can get clogged.

Another popular type of shower drain is the center drain. Center drains are typically circular and are located in the middle of the shower. They’re a traditional option that has been around for a long time, and they’re still popular today. Center drains are easy to install and are great for those who want a classic look. They’re also easy to clean since they have a simple design.

If you’re looking for a shower drain that’s easy to install and maintain, then a PVC shower drain may be the right choice for you. PVC shower drains are made from durable plastic and are resistant to corrosion and rust. They’re also easy to clean and can be installed quickly and easily. PVC shower drains are an affordable option and are perfect for those who want a simple and functional shower drain.

Measuring and Marking the Cutout Area

Now that you’ve settled on the perfect type of drain, it’s time to measure and mark the area where you’ll be making the cutout. This is an important step in the installation process as it ensures that the drain is properly placed and aligned.

To start, you’ll need to locate the center of the shower floor where the drain will be installed. This can be done by measuring the distance between the walls and marking the midpoint.

Once you’ve found the center, it’s time to measure the size of the cutout needed for the drain. This will vary depending on the type of drain you’ve chosen, so make sure to consult the manufacturer’s instructions for specific measurements.

Use a pencil or marker to outline the cutout on the shower floor, ensuring that it is properly aligned with the center point. Double-check your measurements before making any cuts to avoid any mistakes.

After you’ve marked the cutout area, it’s time to start cutting. Use a concrete saw or a handheld jigsaw with a diamond blade to carefully cut through the concrete slab. Take your time and make sure to follow the marked outline, as any mistakes could lead to costly repairs down the line.

With the cutout complete, you can now move on to the next step in the installation process and start setting the drain in place.

Cutting through the Concrete Slab

You’re about to take on a tough task – cutting through the foundation of your bathroom floor to make way for the new plumbing. Before you begin, make sure you have all the necessary tools and safety equipment. This includes a circular saw with a diamond blade, safety goggles, a dust mask, and ear protection.

To start, use a chalk line to mark the area where you’ll be cutting. Make sure the line is straight and accurate.

Next, use a hammer drill with a masonry bit to create holes along the chalk line. These holes will serve as access points for the saw blade.

Once the holes are in place, it’s time to start cutting. Begin at one end of the chalk line and slowly work your way towards the other end. Take your time and apply even pressure to the saw.

Remember to wear your safety gear and keep the area well-ventilated to avoid inhaling dust and debris. With patience and the right equipment, you’ll be able to successfully cut through the concrete slab and create a space for your new shower drain.

Creating a Slope towards the Drain

It’s important to create a gradual incline in the flooring to ensure proper water drainage for your shower drain in a concrete slab. Without a proper slope, standing water can accumulate, leading to potential water damage and mold growth.

To create the proper slope towards the drain, follow these steps:

  • Measure the length and width of the shower area where the concrete slab will be poured.
  • Determine the height difference between the shower area and the drain location. This will be the amount of slope needed for proper drainage.
  • Use a level and a straight edge to mark the slope on the concrete slab. The slope should be a gradual incline towards the drain location.
  • Double-check the slope measurement before pouring the concrete to ensure proper water drainage.

Once the slope has been marked and double-checked, you can pour the concrete slab. Keep in mind that the thickness of the slab will vary based on the size of the shower area and the slope required. It’s important to follow proper concrete pouring techniques to ensure a strong, even slab.

With the proper slope in place, your shower drain will function correctly and prevent any potential water damage or mold growth.

Installing the Drain Base and Strainer

Before diving into installation, let’s chat about setting up the base and strainer for your shower’s water exit point.

First, you’ll need to ensure that the drain base fits securely into the opening in the concrete slab. This may require some adjustments, such as trimming the base slightly or using a sealant to secure it in place.

Once the base is in place, you can attach the strainer to the top of the base. Make sure it fits snugly and is flush with the surface of the shower floor.

When installing the strainer, it’s important to choose one that is appropriate for your needs. Consider the size of your shower and the amount of water that will be flowing through the drain. You’ll want a strainer that can handle the volume without becoming clogged. Additionally, choose a strainer that complements the design of your bathroom. There are a variety of styles and finishes available, so you’re sure to find one that suits your taste.

Once the base and strainer are in place, you can move on to the next step of the installation process. With these elements securely in place, you’ll have a solid foundation for your shower drain.

Take the time to ensure that everything is properly aligned and sealed, and you’ll be well on your way to a leak-free shower that functions perfectly.

Connecting the Drain Pipes

Now that the foundation is set, let’s tackle the next step of connecting the pipes to ensure proper water flow in your new shower.

Before beginning, it’s important to measure and cut the drain pipe to the correct length. To do this, use a hacksaw or reciprocating saw to cut the pipe to the required length. Make sure to remove any burrs or rough edges with a file.

Next, connect the drain pipe to the drain base using PVC primer and cement. Apply the primer to both the pipe and the base, then apply the cement to the same areas. Quickly insert the pipe into the base and hold it in place for a few seconds to allow the cement to dry.

Repeat this process for any additional pipes you need to connect, such as a vent pipe or a second drain pipe for a double shower.

Once all pipes are connected, test the water flow by running water through the pipes and checking for any leaks. If there are any leaks, use PVC glue to secure any loose connections.

Congratulations, you’ve successfully connected the drain pipes for your new shower!

Testing the Drain for Proper Functioning

Let’s make sure everything’s working properly by testing the water flow and checking for any leaks.

Turn on the water and let it run for a few minutes. Watch the water as it flows down the drain. Check to see if the water is flowing smoothly or if it’s backing up. If you notice that the water is backing up, there may be an issue with the installation of the drain pipes. Make sure that the pipes are properly connected and that there are no obstructions blocking the flow of water.

To test for leaks, inspect the area around the shower drain for any signs of water damage or dampness. Look for water stains or discoloration on the concrete slab. If you notice any of these signs, it could be an indication of a leak. Check the drain pipes for any cracks or holes. If you find any damage, you’ll need to repair or replace the affected pipes.

Once you’ve checked for proper water flow and leaks, it’s time to test the drain for its overall functioning. Drop a small object, such as a penny, down the drain and watch it as it goes down. If it goes down smoothly and without any obstructions, then your drain is functioning properly. If the object gets stuck or doesn’t go down smoothly, then there may be an issue with the drain itself. You may need to call a professional to help diagnose and fix any problems with your shower drain.

Sealing the Drain to Prevent Leakage

Sealing the edges around the drain with a waterproof sealant will prevent any pesky leaks from seeping through and causing damage. Once you’ve tested the drain for proper functioning, it’s time to apply the sealant.

Begin by cleaning the area around the drain thoroughly to ensure that there’s no dust or debris. This will ensure that the sealant adheres properly.

Next, apply the sealant around the edges of the drain. You can use a caulk gun to apply a precise amount of sealant. Make sure that you cover the entire area around the drain, including any gaps or spaces. Use a putty knife to smooth out the sealant and ensure that it’s evenly distributed.

Finally, let the sealant dry completely before testing the drain again. This may take a few hours or even a day, depending on the type of sealant you used.

Once the sealant is dry, run water through the drain to make sure that there are no leaks. If you notice any leaks, you may need to apply more sealant or adjust the existing sealant.

With the drain properly sealed, you can rest easy knowing that your shower won’t cause any water damage to your concrete slab.

Finishing Touches for a Professional Look

For a polished and expert appearance, it’s important to focus on the final touches of the project when installing a shower drain for a concrete slab.

After you’ve properly sealed the drain to prevent leakage, you can move on to finishing touches that will make your installation look professional.

One option is to use a finishing ring that’ll cover the rough edge of your drain hole and create a clean and polished look. This ring should be placed over the drain and pressed firmly into place to ensure a proper seal.

Another finishing touch to consider is the installation of a decorative drain cover. These covers come in a variety of styles and materials, from brushed nickel to bronze, and can add a touch of elegance to your shower. Make sure to choose a cover that fits your drain size and style, and follow the manufacturer’s instructions for installation.

This final touch will not only enhance the look of your shower but also provide an added layer of protection to your drain.

To complete your shower drain installation, you may also want to consider adding a layer of sealant around the edges of the drain cover and finishing ring. This’ll help to further prevent any water leakage and ensure that your shower stays dry and well-maintained.

With these finishing touches, you can achieve a professional and polished look for your shower drain installation that’ll last for years to come.


Congratulations! You’ve successfully installed a shower drain for your concrete slab. By following the steps outlined in this article, you’ve ensured that your shower will function properly and prevent any potential water damage.

Remember to always prepare the area before installation, choose the right type of drain, measure and mark the cutout area, cut through the concrete slab, create a slope towards the drain, connect the drain pipes, test the drain for proper functioning, seal the drain to prevent leakage, and add finishing touches for a professional look.

With these steps in mind, you can confidently install a shower drain for your concrete slab and enjoy a functional and beautiful shower for years to come.