Toilet and Floor Drain: Should They Use the Same Drain Pipe?

Many people are now equipped with toilets at home, but most are not familiar with how to install them. So, can the toilet and the floor drain share a single pipe?

Can the toilet and the floor drain share a pipe?

No, according to building drainage regulations, wastewater in a room needs to be divided. This means that the toilet drainage and the floor drain drainage must be set up separately. If the floor drain and toilet use the same drain pipe, the drainage from the floor drain can overwhelm the system, quickly filling the septic tank. If the floor drain is not properly designed, unpleasant odors may easily arise. Moreover, if the toilet gets clogged, there is a risk of backflow from the floor drain.

What are the points to pay attention to when decorating a bathroom?

1. Although the bathroom space is limited, moisture levels are high. Thus, it's essential to focus particularly on ventilation and lighting during renovation. For example, you can install an exhaust fan for ventilation and add auxiliary lighting near the mirror in addition to the main light. If the bathroom is too dim, installing a window might be a good option.

2. The waterproofing and drainage work in the bathroom must be properly executed, especially at the connections of the pipes. When laying tiles, they should be sloped towards the floor drain to facilitate drainage. Additionally, it is important to check that the bathroom drainage pipes are functioning properly before the renovation begins, ensuring there are no blockage issues.

3. Although the bathroom is small, there are many sanitary ware items to consider. Therefore, a well-thought-out plan is crucial during the renovation to prevent the space from becoming too cramped, which would affect comfort. Items should be selected according to the area of the bathroom, and wall space can be utilized to place items effectively.

In summary：the information above pertains to the relationship between toilets and floor drains. From the discussion, we can conclude that the drainage for toilets and floor drains must be arranged separately; otherwise, various issues may arise, affecting our comfort in daily life. During bathroom renovation, careful consideration of all aspects is necessary to avoid problems later on. I hope this helps everyone.