Is a 4-Meter Distance from Toilet to Drain Pipe Considered Too Far?

When installing a toilet's drainage pipe, there are several important considerations to ensure proper functionality. Now, let's take a look at whether a distance of 4 meters from the toilet to the drainage pipe is considered far.

一、Is 4 meters away from the drainage pipe far for a toilet

Yes, it is considered far. When connecting the toilet to the drainage pipe, using a longer drainage pipe can lead to increased risk of blockage during use. Generally, the distance between the toilet's drainage pipe and the wall should be controlled within 30cm to 40cm.

Before installing the toilet, it is essential to confirm the size of the drainage pipe in the bathroom. Common specifications for indoor drainage pipes are typically 75 DN and 90 DN, focusing on the outer diameter. If using a PVC pipe with an outer diameter of 90mm, it usually indicates good quality.

二、What are the dimensions for installing the toilet drainage pipe

1、Before purchasing a toilet, it is crucial to select an appropriate size for the drainage pipe. Typical drainage pipe sizes for toilets include 30cm, 35cm, 40cm, and 45cm. Special attention should be paid to avoid affecting future usage.

2、A toilet's drainage pipe that is a 90mm PVC-U pipe is commonly referred to as a 90mm PVC pipe. If connecting a PVC-U pipe to a cast iron pipe, the water pipe is generally DN75. For connecting to the toilet drainage pipe, DN110 is commonly used, while DN70 and DN90 are usually not suitable.

3、Before installing the drainage pipe, it is important to check the quality of the toilet. The surface of the toilet should be smooth and glossy, without any glazing issues. Additionally, the drainage outlet should be touched to ensure it is smooth.

4、During installation, it is crucial to measure the distance accurately. The margin of error for the distance (pit distance) should not exceed 1cm, and for rear drainage methods, the base distance must be verified. It is recommended to hire professionals for installation to ensure proper functionality in the future.

In summary：this article covers whether a distance of 4 meters from the toilet to the drainage pipe is considered far and the dimensions for installing the toilet drainage pipe. Understanding the proper positioning of the toilet in relation to the drainage pipe is essential, as positioning it too far can lead to issues and unnecessary complications in usage.