Tiffany Haney
Wall-hung toilets are an increasingly popular choice for modern bathrooms, offering a sleek and minimal look. They are also hygienic and easy to clean. However, installing a wall-hung toilet can be challenging and more expensive than fitting a traditional model. It is a plumbing job that should be left to a professional in most cases. If you decide to install a wall-hung toilet yourself, you will need plumbing experience and another person to help you. This guide will take you through the process step-by-step.
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What You'll Learn
Measuring and marking the wall
The first step is to measure the distance from the wall to where you want the toilet to sit. This measurement is crucial in determining the placement of the toilet and ensuring it fits correctly. Mark this distance on the wall using a pen or another suitable marking tool. Additionally, measure the distance from the front to the back of your current toilet to ensure sufficient clearance. The standard clearance measurement is 24" or 600mm, but it is recommended to refer to the manufacturer's instructions for specific requirements.
The next step is to determine the position of the frame and cistern. Measure and mark these positions on the wall. If necessary, use a hole saw to cut any holes in the wall for the waste pipe. The waste pipe should be as close to the ground as possible, ideally within a range of +/- 5 mm. It is important to follow the manufacturer's recommendations for the placement of the wall brackets. Mark out the location of the feet on the floor, ensuring the measurements and placement of the water supply line, waste pipe, and frame depth are accurate.
To ensure a level installation, use a spirit level to check the horizontal lines from left to right, drawing a vertical line from the centre of the waste pipe. This will help you align the pan connector with the waste pipe, ensuring a secure and snug fit. Use a flexible pan connector if space is limited.
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Installing the cistern and support frame
Planning and Measurements:
Before beginning the installation, it is essential to carefully plan and take accurate measurements. Measure the distance from the wall to where you want the toilet to sit, as well as the distance from the front to the back of your current toilet. Verify these measurements against the requirements of the wall-hung toilet system you intend to install. Ensure that your wall can accommodate the frame and cistern; you may need to build a false wall or a purpose-built box to conceal them.
Preparing the Frame:
Mark the position of the wall brackets on the wall according to the manufacturer's instructions. Use a spirit level to ensure the horizontal lines are level. Position the frame, checking the measurements and placement of the water supply line, waste pipe, and the space between the frame and the wall. Mark out the location of the feet on the floor and set the pan connector into place.
Installing the Cistern:
The cistern is a crucial component of the wall-hung toilet and is typically held within the support frame. Manufacturers like Geberit offer frames with cisterns included, providing a complete installation solution. Ensure the cistern is securely attached to the frame. You may need to adjust the water supply line, resize copper piping, and insert a compression fitting.
Finalizing Connections:
After installing the cistern, focus on finalizing the connections. Cut the waste pipe as close to the ground as possible and insert a waste adaptor. Sand down the ends of both parts and coat them with PVC glue before connecting them. This will ensure a secure and odour-free connection.
Concealing the Installation:
To maintain the sleek appearance of a wall-hung toilet, the cistern and frame must be concealed. You can build a false wall or a purpose-built box to hide them. Use plasterboard, cement board, or tile backer board to cover the installation, ensuring you leave openings for the toilet fittings.
Remember that installing a wall-hung toilet can be challenging, and it is recommended to carefully follow the manufacturer's instructions and seek professional help if needed.
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Attaching the toilet seat
To attach the toilet seat, first fit it to the pan and screw it into place. Ensure that the seat stays up when it needs to before fully tightening the screws. Then, insert snap-in plugs into the corresponding holes to ensure they are securely in place. Position and align the seat, making sure it is flush on the front and sides for an aesthetic appearance. Finally, tighten the screws again, being careful not to apply too much pressure to avoid damaging the seat or toilet.
To prevent the toilet seat from clinking against the wall, apply caulking sealant along its length. This step is important for maintaining the wall-hung toilet's sleek and modern appearance.
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Connecting the inlet and evacuation elbow
To connect the inlet and evacuation elbow, first, ensure that the toilet is positioned correctly. The wall-hung toilet should be placed at a distance of 40-45 cm from the ground, with the frame and water supply line, waste pipe, and space between the frame and the wall all properly positioned and measured. The horizontal lines should be level, and the vertical line from the centre of the waste pipe should be checked for accuracy.
Next, align the toilet bowl correctly. The toilet bowl should be level and secure, and you can adjust it using an adjustable wrench or spanner. This step is crucial to ensure the proper functioning of the toilet. Connect the toilet bowl to the waste pipe using the suitable connector, such as a pan connector or a waste adaptor, ensuring a secure and snug fit with no leaks.
After connecting the waste pipe, it is important to verify the alignment of the wall-hung toilet with the connections. This includes checking the inlet and evacuation elbow to ensure they are properly connected. Once you have confirmed the correct positioning and alignment, you can proceed to tighten the mounting nuts and screws to secure the toilet in place.
Finally, before attaching the toilet seat, insert snap-in plugs into the corresponding holes to ensure they are secure. Position and align the seat with the perimeter of the toilet, ensuring a flush appearance on the front and sides. Tighten the screws firmly but be careful not to over-tighten to avoid damaging the seat or the toilet.
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Finishing touches and testing
Now that you've installed the wall-hung toilet, it's time to add the finishing touches and test your work.
First, connect the flush plate according to the instructions provided. Then, turn on the water supply to the cistern and carefully check for any leaks. Test the flush a few times to ensure it's working correctly.
Before attaching the toilet seat, insert snap-in plugs into the corresponding holes. Securely place the seat, aligning it with the wall-hung toilet's perimeter. Ensure the seat is flush on the front and sides for a neat, aesthetic appearance.
Finally, tighten the screws. Be careful not to over-tighten, as this could damage the seat or the toilet. Check that the seat stays up when required before fully tightening the screws.
Your wall-hung toilet is now ready to use!
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Frequently asked questions
Wall-hung toilets are stylish, comfortable, and hygienic. They are also easier to clean and take up less space.
First, make sure the wall is strong enough to support the toilet. You may need to reinforce it. Measure the positions of the frame and cistern against the wall and mark with a pen. Use a hole saw to cut any holes in the wall for the waste pipe if needed.
Install the fixing frame first. Then, attach the rubber flush gasket into the toilet bowl, insert the fixing bolts into the wall bracket, and attach them to the gasket. Check the position of the bowl and adjust the bolts with a wrench/spanner. Connect the bowl to the waste pipe.
Fit the toilet seat to the pan and screw it into place. Before fully tightening the screws, check the seat stays up when it needs to. Insert snap-in plugs into the corresponding holes. Place the seat and align it with the perimeter of the toilet. Ensure it is flush on the front and sides for aesthetics.
Connect the flush plate according to its instructions. Turn on the water supply to the cistern, check for leaks, and test the flush a few times. Finally, install finishing wall panels or tiles.
