What is the Diameter of a Toilet Drain?

The toilet is used frequently, so special attention needs to be given during installation. What is the diameter of the toilet drainage pipe? What are the installation precautions for toilets? Let's take a look at the relevant knowledge.

一、What is the Diameter of the Toilet Drainage Pipe

The diameter of the toilet drainage pipe is about 80 mm, and the size of the drainage pipe is 110 mm. The toilet's drainage port refers to the distance from the drainage pipe to the outlet. Since different households use different types of toilets and have varying hole distances, it is essential to measure the drainage hole distance before purchasing a toilet. If in special circumstances, a converter can be installed to adjust the distance.

二、Precautions for Toilet Installation

1、Pay attention to the size of the toilet drainage dimensions in the bathroom, and before installation, ensure that all product parts are complete and match the instruction manual.

2、After determining the height of the drainage pipe, cut off the excess part to make the pipe level with the bottom of the toilet. Use a hacksaw for the drainage pipe with a height of 0.5 cm. Since the toilet flange is relatively soft, if it’s not higher than 0.5 cm, it may lead to leaking issues; preparing to fit it tightly at 0.5 cm is recommended for better sealing.

3、Before purchasing a toilet, determine the dimensions of the toilet drainage in the bathroom, specifically the distance from wall to wall. If you are planning to lay tiles, remember to measure the recess distance after tiling to ensure the toilet fits, avoiding installation issues.

4、Install the flange at the outlet, ensuring that you press the flange firmly to guarantee a snug fit of the toilet drain pipe.

5、Applying sealant is mainly for stabilizing the toilet installation, and it can also prevent odors and effectively block local water accumulation in the bathroom. Note that you should wait for the silicone or cement mortar to cure before using the water.

Conclusion：The information on the diameter of the toilet drainage pipe and installation precautions has been shared here. I hope it is helpful. For more related knowledge, please continue to follow the Hawkrown consultation platform, where we will present more exciting content in the future.