Connection of the toilet bowl to the sewer system with oblique, straight or horizontal outlet

One of the most important things to think about when installing a toilet in your house is how to connect it to the sewer system. Although it may sound technical, this is an essential step to make sure everything functions properly. Whether you’re replacing an outdated toilet or installing a new one, knowing the differences between horizontal, straight, and oblique outlets will help you choose the best one for your bathroom.

A slanted connection point is a feature of an oblique outlet toilet bowl. When there are space restrictions or the sewer pipe is positioned at an angle, this kind of outlet is frequently chosen. The toilet’s oblique design makes it easier to fit in tight spaces by allowing for flexibility in positioning it in relation to the sewer pipe. You have more options when designing your bathroom layout because it is a flexible option that can fit into different plumbing layouts.

A straight outlet toilet bowl, on the other hand, is directly connected to the sewer pipe vertically. This is a simple design that is frequently found in many homes. Straight outlets can be more affordable and are typically simpler to install. To avoid any possible leaks or drainage problems, it is crucial to make sure the toilet is properly positioned in relation to the sewer pipe. To guarantee that your toilet operates correctly and effectively, proper alignment and a secure connection are essential.

Lastly, a sideways connection is used to link the horizontal outlet toilet bowl to the sewer system. When the sewer pipe runs horizontally, as in some older homes or in certain plumbing configurations, this type of outlet is frequently used. To guarantee that the toilet and sewer pipe are properly aligned, installing a horizontal outlet toilet requires careful planning. A horizontal outlet can work well in some plumbing configurations, even though it may take a little more work to install.

Whether you choose a toilet bowl with an oblique, straight, or horizontal outlet, a leak-free and effective system depends on correct installation. If you’re not sure which kind of outlet is best for your house or if you need help installing it, it’s always a good idea to speak with a licensed plumber. A well-chosen and installed toilet will provide years of trouble-free use in addition to excellent aesthetics.

What tools and materials are required

Selecting the required building supplies and auxiliary tools is required prior to attaching the toilet bowl to the sewer system. The model of the product, the intended location, and the connection method all have a major influence on the selection of fittings used to form connecting parts.

The following common tools will be required for installation:

• silicone;
• corrugation for sewerage
• hammer, marker, construction tape measure;
• hacksaw for metal or plastic elements;
• plastic bends and special corners;
• an eccentric collar;
• sealing collar;
• Adapters made of rubber;
• parts required to dismantle the components of the former connection to the riser and firmly fix the sanitary ware.

If cast iron spigots were previously used to connect to the sewer system, professional equipment (a special perforator and grinder) is probably needed.

But, in this kind of scenario, it is preferable to call in experts who have the required tools rather than trying to disassemble the process yourself.

Connecting a toilet bowl to the sewer system involves considering the type of outlet it has: oblique, straight, or horizontal. Each type of outlet requires specific installation techniques to ensure proper drainage and functionality. An oblique outlet is angled, often making it suitable for floor-mounted toilets where the waste pipes are directed towards the wall or floor drain. A straight outlet is vertical and is commonly found in wall-mounted toilets, requiring a downward pipe to connect directly to the sewer line. Meanwhile, a horizontal outlet extends horizontally from the back of the toilet, usually connecting to a waste pipe within the wall. Properly aligning and sealing these connections is crucial to prevent leaks and ensure efficient waste removal. It"s essential to follow manufacturer guidelines and local plumbing codes when installing or replacing a toilet to guarantee a safe and effective connection to the sewer system.

Ways of connecting the toilet bowl to the sewer system

The specifics of connecting the toilet bowl to the sewer riser are determined by the system’s design. It is crucial to remember that the collector system should determine the shape of the toilet bowl.

Three primary categories exist:

• vertical – such models of sanitary fixtures are mostly found in old buildings, where the sewer pipe socket in the floor passes into the riser located under the ceiling of the room below. Today, cottage owners also choose such a connection, t.к. This allows the sewer pipe to be completely hidden;
• straight – also allows you to remove from sight communications. The advantage of this approach is the possibility of mounting the toilet bowl at a small distance from the wall;
• oblique The connection option is used when it is important to ensure functioning even if the sealing is damaged or compromised. Sometimes owners decide to lead the toilet outlet directly into the riser, but this increases the risk of leakage, so it is undesirable to implement this approach, it is better to use a special adapter.

Dismantling of old elements

The installation site must be cleared of remnants of earlier constructions before the toilet bowl is connected to the sewer pipe. Three tools are needed to complete the procedure: a screwdriver, hammer, and screwdriver montage.

The outlet of outdated products is typically embedded in a cast-iron structure, or "elbow," necessitating the breaking of the spigot with a hammer. Wearing safety goggles is required when carrying out this process. If not, shards of sharp ceramic will cut into the eyes and cause harm.

Once the old sanitary device has been disassembled, the cast iron pipe needs to be knocked on all sides. Next, the cement layer and other deposits need to be removed from the walls.

Large components will need to be removed using a crowbar; small parts can be removed with a screwdriver and hammer. It’s crucial to use caution when tapping with a hammer, t.к. Severe hits will cause the cast iron socket to split.

In this instance, accessing the sewer riser will require breaking through the floor. The new outlet will then need to be connected to the riser pipe.

You can move on to the pipeline’s last cleaning step after the major deposits have been eliminated. In order to accomplish this, they must be coated with a particular chemical cleaner designed to clean toilet bowls, and the residue must be removed using a metal brush.

Using a rag, finish cleaning. The smoothness of the inside of the first 5–6 cm of the cast iron socket is dependent on the tightness of the joint and the lack of future leaks. Wearing protective gloves during the entire process is advised.

Varieties of connection elements

Auxiliary materials, such as connecting pipes, are utilized if the design features make it impossible to connect the toilet bowl directly to the sewer. These kinds are most frequently used:

• corrugation;
• eccentric collars;
• corners and bends made of plastic;
• pipes of different material, but plastic pipes are preferable.

If the spigot alignment is not followed, the toilet bowl’s connection to the sewer corrugation is utilized. This variety has the benefit of allowing the product to be installed at any angle.

A large minimum length is one of the drawbacks of using corrugated to connect the toilet bowl to the sewerage system. Choose different connecting parts if there is less than 12 centimeters between the spigots.

Eccentric sleeves resemble two branches with their centers shifted. It is advised to measure the offset between the toilet drain and the sewer pipe before buying the part.

You can use this information to select the store’s best-fitting collar model. The eccentric portion’s short length indicates that it can only be installed up to 12 cm apart from the spigots, which is a drawback.

When corrugations are not usable for any reason, bends and angles are installed. Their smooth interior wall, which drastically lowers the possibility of clog formation, gives them an advantage over corrugations.

The primary drawback is rigidity, which causes leakage at even minor misalignments. Unlike cast iron products, plastics can be cut to the exact size needed.

When there is a chance that the odor trap will be broken, steel pipes are typically utilized (learn more about odor traps for sewerage, including their types and principles of operation). Liquid from the trap will be drawn into the riser pipe if it is not large enough.

Consequently, the sewage system’s stench seeps into the room and the odor trap stops functioning. In this case, the riser pipe or the pipe that connects to the toilet bowl is connected to a pipe product that has an automatic valve. A unique valve opens during draining, allowing air to enter and keeping the hydroseal from coming off.

Nevertheless, using precise steel pipes is not always required for the execution of such a function. The pipeline has comparable characteristics because of eccentrics and adapters as well. When using any type of connecting element, sealant is advised to guarantee the dependability of the connection.

It is preferable to buy a specific water-resistant product made for plumbing fixtures for these uses. The sealant will stop leaks if the rubber sealing collar is loosened.

Connection with a corrugation

Typically, corrugation is used during the installation of a toilet bowl with an oblique and straight outlet. It can be bent in any direction, is inexpensive, and serves as a temporary connecting element. The length from the toilet outlet to the sewer outlet should serve as a guide when making purchases; the corrugation should be one-third greater than this measurement.

What’s the outlet for the toilet bowl? This solid serves as the link between the apartment’s plumbing and the sewage system for drainage. Horizontal, vertical, and oblique drain outlets are the three types.

A succinct action algorithm:

1. Lubricate the joint with silicone and insert the corrugation with a seal into the opening of the pipeline. It is desirable not to move it until the silicone-based product dries completely.
2. Place the toilet bowl, check its stability. If the product wobbles, it is necessary to level the floor or install special stands.
3. Insert the corrugation into the toilet spigot, it is not necessary to lubricate the connection with anything.
4. Pour a few liters of liquid, wait 1 min., then make sure there are no leaks. If the connection leaks, it is necessary to disconnect the corrugation, check the correct location of the seals and carefully re-install the corrugation.
5. If there are no leaks, you can mark the places of fixing the sanitary appliance with a pencil or marker.
6. Secure the workpiece so that it does not wobble.
7. Connect to the sewer.
8. After 2 hours to carry out testing, making several flushes. Wait 5 min., if the pipe does not leak, you can proceed to the installation of the cistern and other elements.
9. Lubricate the joint with sealant on the outside to prevent leaks in the future.

It’s essential to remove all of the liquid and the corrugation if a tiny leak (a few drops) was found during the previous test. Install the product on the toilet spigot after reapplying silicone to the rubber band.

Find out what to do if the cistern in your toilet starts leaking unexpectedly: There are nine reasons why it leaks and how-to videos for fixing it.

Although it may seem easy to connect a toilet bowl to the sewer system, it’s important to select the appropriate outlet type for your needs. The efficiency of your plumbing system and the ease of installation can differ significantly depending on whether you choose an oblique, straight, or horizontal outlet.

When the sewer pipe is positioned at an angle to the toilet, an oblique outlet is typically utilized. This kind of outlet can be installed in a variety of ways, which makes it appropriate for different bathroom designs. But, in order to avoid any possible drainage problems, it’s imperative to make sure the angle matches your sewer pipe. It might be necessary to hire an expert installer to ensure correct alignment and fit.

Conversely, a straight outlet is simpler to use and is usually found where the sewer pipe is directly beneath the toilet. By providing a straight path for waste to enter the sewer system, it lowers the possibility of obstructions or clogs. Many homeowners prefer this type of outlet because it is simpler to install than an oblique outlet.

Although less common, a horizontal outlet can be helpful in some circumstances when the sewer pipe runs parallel to the wall. To ensure appropriate drainage, this kind of outlet needs to be installed precisely and with careful planning. Installing it might be trickier than installing oblique or straight outlets, so it’s usually best to get professional assistance to avoid any problems.

In conclusion, the design of your bathroom and the location of your sewer pipe will determine whether you choose an oblique, straight, or horizontal outlet for your toilet bowl connection. Every type has benefits and drawbacks, so it’s important to think about your particular requirements and, if in doubt, seek professional advice. You can guarantee a seamless connection to the sewer system and effective plumbing fixture operation with the appropriate outlet selection and installation.

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