Movement of Toilet Bowl in Chengxi Bridge Toilet

The movement of the toilet bowl in the Chengxi Bridge toilet should be selected based on the drainage type, as follows:

Submerged drainage (no thick downpipe visible when looking up, with pipes buried in the sunken floor of one's own home)
This type of drainage allows for relatively less restricted movement of the toilet bowl, and larger distances can be achieved by adjusting the drainage pipes.

• Long-distance movement: By laying drainage pipes with a 1% slope, a movement distance of 3.5 - 5 meters can be achieved, only requiring re-planning of the pipe route.
• Floor elevation method: If further adjustment of height or slope is needed, the floor can be elevated first, with the sewage horizontal pipe arranged and a bottom platform built to embed the pipes, followed by completion of the floor leveling, waterproofing, and tiling processes. This method is suitable for scenarios where pipes need to be hidden or the toilet height needs to be adjusted.

Inter-floor drainage (a thick downpipe is visible when looking up, and toilet water flows directly onto the ceiling of the downstairs neighbor)
This type of drainage has more restrictions on the movement of the toilet bowl, and the plan should be selected based on the distance:

• Short-distance movement (about 35 cm): Use a toilet offset flange, embed the sewage horizontal pipe into the floor, pre-embed the offset flange to connect the original pipe with the target area, and finally complete the floor leveling, waterproofing, and tiling.
• Medium-distance movement (10 cm - 15 cm): The floor needs to be elevated to create a slope for the downpipe to ensure smooth drainage.
• Long-distance movement (over 15 cm): Using an offset flange alone may not meet the requirements, and structural modifications need to be considered:
  • Chiseling through the floor slab and re-piping: When specific conditions are met (such as the downstairs owner not having moved in, neighbor's consent, and property management permission), the floor slab can be chiseled through to create a large elbow pipe for long-distance movement.
  • Wall-mounted drainage (wall-hung toilet): Install a vertical pipe tee to connect the sewage horizontal pipe to the target area, install a water tank and build a low wall to enclose the pipes, and finally install the toilet. This method does not require moving the original drainage pipe but requires pre-planning of the water tank location and wall structure.

Precautions

• Before moving the toilet bowl, confirm the drainage type to avoid using the wrong method, which may lead to poor drainage or water leakage.
• When structural modifications (such as chiseling through the floor slab) are involved, permission from relevant parties must be obtained, and the construction must comply with building codes.
• When elevating the floor or building walls, pay attention to waterproofing to avoid leakage problems in the later stage.