Understanding the Right Drain Pipe Size for Your Toilet

The drainage pipe used for toilets needs to be compatible to ensure there are no leaks. Now, let's take a look at what size drainage pipe a toilet uses.

What Size Drain Pipe is Required for a Toilet：

The common sizes for toilet drainage pipes are DN50, DN100, DN150, and so on. The size of the drainage pipe required for a toilet depends on the size of the toilet's rough-in. To ensure proper installation and use, it's important to choose the right drainage pipe to avoid clogs.

The size of the toilet's drainage outlet is typically designed to be between 5 to 6 cm, and the size of the S-bend installed for the toilet is also within this range. The diameter of the sewage pipe is generally about 110 mm. To ensure normal use in the future, it's essential to select the correct drainage pipe. Additionally, the quality of the drainage pipe should not be subpar.

Considerations for Toilet Installation：

1、Choose a toilet that is of good quality, has complete accessories, and is preferably manufactured by a reputable brand. Quality toilets will have a smooth, defect-free glaze surface to ensure proper waste disposal.

2、You can try to touch the drainage outlet of the toilet to see if it is smooth. Only a smooth glaze surface can ensure that waste is easily flushed away, preventing stains from adhering to the surface, which would make cleaning very troublesome.

3、Before purchasing a toilet, you also need to accurately measure the rough-in distance, keeping the margin of error within 1 cm. A distance that is too small may hinder proper installation, while one that is too large can lead to leaking issues.

4、After the toilet is installed, you should test it to see if it flushes correctly. Wait for a while to check for any leaks. If there are any, adjustments should be made promptly to avoid affecting normal use.

In summary：this is an overview of what size drainage pipe a toilet requires and what considerations to keep in mind during installation. It’s important to select the appropriate size for the drainage pipe to ensure a seamless home life and avoid unnecessary troubles.