Are Floor Drains and Toilets Connected to the Same Pipe?

Is the drainage system for the floor drain and the toilet the same? What to do if there are blockages in both the floor drain and the toilet?

Are the floor drain and toilet connected to the same pipeline?

Yes, they are connected to the same pipeline, which is formed by one main drainage line with various branches. This means that both the floor drain and the toilet are connected to their respective drainage pipes running from different rooms. There is one main drainage pipe, composed of PVC pipes with different diameters, which is installed before the house is renovated. After that, the toilet and floor drain can be installed. If any issues arise, modifications may be required.

The drainage structure in bathrooms can be either U-shaped or straight. The U-shaped design takes up less space and has strong drainage capabilities. The straight design is simpler and typically conserves water, often used in public bathrooms.

What are the differences between the drainage pipes of the floor drain and the toilet?

1. The sizes of the drainage pipes for the floor drain and the toilet differ. Generally, the drainage pipe for a floor drain is set at a diameter of 50 mm, while the vertical pipe should reach 75 mm. For public areas, this can range from 75 mm up to 160 mm.

2. For toilet drainage, the standard pipe size is usually 110 mm, so it's important to know the specific dimensions of the drainage pipes when installing.

What to do if the drainage pipes of the floor drain and toilet are clogged?

1. When the drainage pipes of both are clogged, the main solution is to carry out unclogging measures. Depending on the severity of the blockage, you can use methods like flushing hot water or applying pressure.

2. You can also use common drainage solutions or lye to help dissolve the blockage. If there are foreign objects causing the blockage, try to retrieve them using tools like a drain snake; these methods have proven to be very effective.

In summary：the drainage pipes for the floor drain and toilet share the same pipeline. Improper use can easily lead to blockage issues.