Imagine having the flexibility to add a fully functional bathroom or sink in places where traditional plumbing might seem impossible.

Whether you’re planning to transform your basement into a cozy living space, create a convenient bathroom in your garage, or optimize space in a small apartment, a Saniflo toilet and sink combo could be the answer you’ve been looking for.

Yes, it is entirely possible to connect a Saniflo toilet and sink in the same bathroom. Saniflo systems are designed to handle multiple fixtures, including toilets and sinks, making them a versatile plumbing solution.

To connect them, you will need to ensure that the waste pipes from both the toilet and sink are properly connected to the macerator pump unit, which will grind and pump the waste to the sewer or septic system.

Follow the manufacturer’s guidelines for installation and plumbing connections to ensure a seamless and efficient integration of both fixtures into your Saniflo system. This flexibility allows you to create functional bathrooms in unconventional spaces where traditional plumbing might be challenging or costly.

What Is a Saniflo Toilet and Sink Combo?

Let’s start by demystifying the concept of a Saniflo toilet and sink combo. In essence, it’s a plumbing solution that allows you to install a toilet and sink in places where traditional plumbing systems can be challenging or prohibitively expensive.

Unlike conventional plumbing, which relies on gravity to move waste and water through pipes, Saniflo systems use a macerator and pump to efficiently transport waste vertically and horizontally. This ingenious technology opens up a world of possibilities for creating functional bathrooms, kitchenettes, and utility sinks where you need them most.

Saniflo Toilet and Sink Combo

Advantages of a Saniflo Toilet and Sink Combo

Before we dive into the technical details, let’s explore the numerous advantages of opting for a Saniflo toilet and sink combo:

  • Versatility: These systems provide unparalleled versatility, allowing you to install plumbing fixtures virtually anywhere, from basements to garages and even beneath staircases.
  • Space-Saving: Saniflo toilets and sinks are perfect for small spaces or areas where traditional plumbing would encroach on valuable square footage.
  • Cost-Effective: Instead of undertaking costly and disruptive renovations to accommodate traditional plumbing, a Saniflo solution offers a more budget-friendly alternative.
  • Easy Installation: While the idea of installing a macerating system might seem daunting, many homeowners with basic plumbing skills successfully complete the installation themselves.

Now that you understand the benefits, let’s delve into how these systems actually work.

How Does a Saniflo Toilet and Sink Combo Work?

At the heart of a Saniflo system is a macerator pump, a remarkable piece of engineering that transforms waste and water into a fine slurry, ready for efficient transport. Here’s a simplified breakdown of the process:

  • Waste Maceration: When you flush the toilet or use the sink, waste and water flow into a sealed chamber within the macerator pump.
  • Maceration: The macerator pump grinds waste into a smooth slurry using a rotating blade. This process ensures that even solid waste is liquefied, making it easier to pump.
  • Pumping: The pump then forcefully propels the slurry through small-diameter pipes, overcoming gravity and distance to reach the main sewage line or septic tank.
  • Discharge: The waste is efficiently discharged, leaving your space clean and odor-free.

This unique process is what enables Saniflo systems to be so versatile, as they can pump waste both vertically and horizontally. It’s a game-changer for unconventional plumbing needs.

Saniflo Toilet and Sink Combo

Choosing the Right Saniflo Toilet and Sink Combo

Now that you’re intrigued by the possibilities of a Saniflo system, it’s time to choose the right combination for your needs. Saniflo offers various models for toilets and sinks, each designed for specific applications. Here are a few factors to consider:

  • Space and Layout: Assess the available space and layout of your intended installation area. This will help you determine the size and type of toilet and sink that will fit best.
  • Water Supply and Drainage: Ensure you have access to a water supply and a suitable drainage location. A nearby electrical outlet is also necessary for the macerator pump.
  • Usage: Consider how frequently the toilet and sink will be used. For heavy usage, opt for a model designed for durability and reliability.
  • Appearance: Saniflo offers a range of styles and designs to suit your aesthetic preferences. Choose fixtures that complement your space’s decor.
  • Warranty: Check the warranty offered by the manufacturer for your chosen Saniflo toilet and sink combination. It’s always wise to have peace of mind in case any issues arise.

With these considerations in mind, you can confidently select the perfect Saniflo combination for your specific requirements.

How to Install a Saniflo Toilet and Sink Combo

Now, let’s move on to the exciting part: the installation process. While it may seem complex, installing a Saniflo toilet and sink combo is manageable with some basic plumbing skills. Here’s a step-by-step guide to get you started:

Step 1: Assemble Your Materials and Tools

Gather all the tools and materials you’ll need for the installation, including wrenches, screwdrivers, a hacksaw, PVC pipes and fittings, plumber’s tape, plumber’s putty, safety goggles, work gloves, a tape measure, and a level.

Step 2: Pre-Installation Preparation

  • Choose the location for your Saniflo toilet and sink combo. Make sure it’s close to a water supply and electrical outlet.
  • Familiarize yourself with local building codes and regulations to ensure compliance.
  • Plan the layout of your plumbing connections, including where the macerator pump will be located, where waste will be discharged, and where water supply lines will connect.
  • Ensure the floor is level and stable. Use shims if necessary to make adjustments.

Step 3: Install the Macerator Pump

  • Place the macerator pump on a stable, flat surface close to where the toilet and sink will be installed.
  • Install rubber gaskets on the inlet and discharge ports of the macerator pump.
  • Connect the discharge pipe to the discharge port, securing it with hose clamps.
  • Attach the discharge elbow to the discharge pipe.

Step 4: Connect the Water Supply

  • Locate the existing water supply line in your chosen area.
  • Shut off the water supply and drain the pipes.
  • Cut the water supply line at the desired location for your sink.
  • Install a T-fitting and connect the existing supply line to it.
  • Connect a new water line to the open end of the T-fitting.
  • Turn on the water supply to test for any leaks.

Step 5: Install the Toilet Bowl and Tank

  • Position the toilet bowl in the desired location, ensuring it’s level.
  • Mark the positions of the mounting holes on the floor.
  • Drill pilot holes for the anchor bolts and secure the toilet bowl to the floor using these bolts.
  • Attach the tank to the bowl following the manufacturer’s instructions.
install the Toilet bowl

Step 6: Connect the Macerator Pump to the Toilet and Sink

  • Position the macerator pump so that it aligns with the toilet’s discharge outlet.
  • Connect the discharge elbow to the toilet’s discharge outlet.
  • Secure the macerator pump to the floor using mounting brackets or straps.
  • Connect the sink’s drain to the macerator pump’s inlet.

Step 7: Connect the Waste Line

  • Measure and cut a section of PVC pipe to connect the macerator pump’s discharge outlet to the main sewage line or septic tank.
  • Use PVC solvent cement to secure the pipe connections.
  • Ensure that the waste line has the proper slope for effective drainage.

Step 8: Install the Vent Pipe (if required)

  • Depending on your specific setup, you may need to install a vent pipe for proper airflow in the drainage system.
  • Measure and cut a section of PVC pipe to create the vent.
  • Connect the vent pipe to the venting port on the macerator pump and extend it to the outdoors or an existing vent stack.

Step 9: Secure the Toilet Tank and Seat

  • Attach the tank to the bowl following the manufacturer’s instructions.
  • Install the toilet seat according to the provided guidelines.

Step 10: Test Your Saniflo Toilet and Sink Combo

  • Turn on the electrical circuit dedicated to the Saniflo system.
  • Flush the toilet and run the sink, listening for any unusual noises or vibrations.
  • Monitor the wastewater discharge to ensure it flows freely.
  • Check for any leaks in the water supply or waste connections.

Step 11: Finish and Seal

  • Seal the base of the toilet with a Saniflo toilet seal or a wax ring to prevent odors or leaks.
  • Install any trim and covers to complete the installation.

Congratulations! You’ve successfully installed a Saniflo toilet and sink combo, expanding the possibilities for functional plumbing in your space. Although the installation process may seem complex, with careful planning and attention to detail, it’s a manageable DIY project for those with basic plumbing skills.

Testing and Troubleshooting

After completing the installation, it’s crucial to test your Saniflo toilet and sink combo to ensure it functions correctly. Here’s how to do it:

  • Flush Test: Flush the toilet multiple times to ensure that waste and water are efficiently macerated and pumped away.
  • Inspect for Leaks: Check all connections, including the sink drain and toilet base, for any signs of water or waste leakage.
  • Listen for Unusual Noises: Pay close attention to any unusual noises during the flushing process. If you hear grinding or vibrating sounds, there might be an issue with the macerator.
  • Check for Proper Drainage: Confirm that waste is properly draining into the sewage or septic system without backing up.
  • Test the Ventilation: If you’ve installed a vent pipe, make sure it remains unobstructed to ensure proper airflow and drainage.

If you encounter any issues during the testing phase, refer to the troubleshooting section in your Saniflo user manual or contact Saniflo’s customer support for guidance.

saniflo toilet bowl

Maintenance and Care

To keep your Saniflo toilet and sink combo in optimal condition, follow these maintenance tips:

  • Regular Cleaning: Clean the toilet bowl, sink, and surrounding areas as you would with any standard fixtures.
  • Inspect Connections: Periodically check all connections for signs of leaks or loose fittings.
  • Avoid Harsh Chemicals: Use cleaning products that are compatible with macerating systems to prevent damage to the pump and pipes.
  • Annual Inspection: Consider an annual inspection by a professional plumber to ensure that everything is functioning correctly.
  • Maintain the Vent (if applicable): If you’ve installed a vent pipe, make sure it remains unobstructed to ensure proper airflow and efficient drainage.

Real-Life Applications and Examples

To illustrate the practicality and versatility of Saniflo toilet and sink combos, let’s explore some real-life applications:

  • Basement Bathrooms: Converting your basement into a living space often requires a bathroom. Saniflo systems make it possible to add a bathroom without the need for extensive and costly underground plumbing.
  • Garage Workshops: For those who use their garages as workshops or hobby spaces, having a sink for cleanup and a toilet for convenience can greatly enhance the space’s functionality.
  • Tiny Homes and Apartments: In tiny homes and compact apartments, every square inch counts. Saniflo systems allow for the installation of essential plumbing fixtures without sacrificing valuable living space.
  • Rental Properties: Landlords looking to add bathrooms or kitchenettes to rental units can benefit from the cost-effective and efficient nature of Saniflo systems.
  • Commercial Spaces: Small office spaces, cafes, and retail stores often have limited plumbing options. Saniflo systems offer a convenient way to install restrooms and sinks.
  • Accessibility: Saniflo toilets and sinks can be installed to create accessible bathrooms for individuals with mobility challenges, providing independence and comfort.
install a saniflo toilet

Frequently Asked Questions (FAQs)

Let’s address some common questions and concerns you might have about Saniflo toilet and sink combos:

Q1: Are Saniflo systems reliable for daily use?

Absolutely. Saniflo systems are designed for durability and can handle regular use without issues.

Q2: Can I install a Saniflo toilet and sink combo in my home if I’m not a professional plumber?

Yes, many homeowners with basic plumbing skills successfully install Saniflo systems themselves. Just follow the installation steps carefully.

Q3: How long does a Saniflo system typically last?

With proper maintenance, a Saniflo system can last for many years. Some users have reported trouble-free operation for 10-15 years.

Q4: Are Saniflo systems noisy?

While there may be some noise during the maceration and pumping process, it’s generally not disruptive and should not be a significant concern.


In the world of plumbing innovation, Saniflo toilet and sink combos stand out as a versatile and space-saving solution. These systems have the power to transform basements, garages, small apartments, and various commercial spaces into functional and convenient areas.

By understanding the advantages, installation process, and maintenance requirements, you’re well-equipped to explore the possibilities that a Saniflo toilet and sink combo can offer.

Remember that while the installation may seem complex, it’s entirely manageable for those with basic plumbing skills.

With the right planning and execution, you can create a space that’s not only practical but also comfortable and efficient. Embrace the flexibility of Saniflo and enjoy the convenience of plumbing wherever you need it most.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *