The Importance of a Toilet Flange
A toilet flange is a crucial component in any bathroom plumbing system. It is a circular ring that connects the toilet bowl to the drainpipe, ensuring a secure and watertight connection. Without a properly installed flange, you may encounter leaks, bad odors, or even damage to the flooring.
Understanding the Flange and Pipe Connection
When it comes to the positioning of the toilet flange, there is some confusion among homeowners. The flange can either go inside or outside the pipe, depending on the specific plumbing setup. Let’s explore the two scenarios:
1. Flange Inside the Pipe
In some older homes or situations where the drainpipe is cast iron, the toilet flange is installed inside the pipe. This type of flange is commonly referred to as an inside fit or inside pipe flange. It is designed to fit into the end of the drainpipe, creating a seal with the help of a wax ring.
To install an inside fit flange, you will need to remove the old flange if present. Then, you can insert the new flange inside the pipe, ensuring it is aligned properly and securely fastened. Once the flange is in place, you can proceed with installing the toilet bowl using a wax ring to create a watertight seal.
2. Flange Outside the Pipe
In most modern homes, the toilet flange is installed outside the pipe. This type of flange is commonly referred to as an outside fit or outside pipe flange. It is designed to sit on top of the drainpipe, allowing the toilet bowl to be bolted directly onto it.
To install an outside fit flange, you will need to remove the old flange if present. Then, you can position the new flange on top of the drainpipe, ensuring it is aligned properly. Secure the flange to the floor using screws or bolts, depending on the specific design. Finally, install the toilet bowl using a wax ring for a proper seal.
Choosing the Right Flange
When replacing or installing a toilet flange, it is essential to choose the correct type for your specific plumbing setup. Measure the diameter of your drainpipe to determine whether you need an inside fit or outside fit flange. Additionally, consider the material of the flange, such as PVC or cast iron, to ensure compatibility with your drainpipe.
Conclusion
So, does the toilet flange go inside or outside the pipe? The answer depends on your specific plumbing setup. In older homes or situations with cast iron drainpipes, the flange goes inside the pipe. In most modern homes, the flange sits outside the pipe. Regardless of the placement, it is crucial to install the flange correctly to ensure a secure and watertight connection for your toilet bowl.
If you are unsure about the correct flange installation method for your specific situation, it is always best to consult a professional plumber who can provide expert guidance and ensure a proper installation.