Gurgling Drain Noises: What They Mean and How to Fix Them

It is well known that floor drains are essential hardware in home decoration. So the question arises: do you know why the floor drain downstairs makes a gurgling sound when someone upstairs uses water? What should be paid attention to during the installation of a floor drain? Let me give you a brief introduction.

Why does the floor drain downstairs gurgle when water is used upstairs?

The gurgling sound occurs because there is air in the drainage system, and the sound you hear is the air being expelled. Additionally, the walls of the drainage pipes are relatively thin, so the sound travels easily to your ears. This is not a cause for concern as long as you ensure that your drain pipes are clear and do not leak. Such phenomena are unavoidable in daily life, so you don't need to worry too much about it.

What should be noted during the installation of a floor drain?

1. Correct Size

Before installing the floor drain, make sure to purchase a drain that fits the size requirements of your home. It’s best to buy according to the dimensions of the drainage hole, as the size directly affects whether it can be installed properly. Now, the floor drain on the market mainly consists of three parts: the main body, the floating cover, and the upper cover.

Therefore, during the installation of the floor drain, it’s crucial to add enough water to the water seal layer, ideally filling it completely. This ensures that there is sufficient depth of liquid inside, allowing the floating cover to move freely with the water, thus achieving optimal drainage performance.

2. Smart Use of Cement

During the installation process, there may be gaps between the floor drain and the drainage pipe, so it is necessary to use cement to fill in the surrounding gaps. This will ensure a seamless connection between the drain and the drainage opening. However, the amount of cement used must be carefully controlled; it shouldn’t be too much or too little. Ideally, the height between the drain and the floor should be kept within 2 millimeters. After all, either being too high or too low could significantly affect the overall drainage efficiency.

In conclusion：after reading the above introduction, I believe you now have a better understanding of why the floor drain gurgles when water is used upstairs. If you want to learn more relevant information, please continue to follow our website, as we will present more exciting content in the future.