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Home Decoration Toilet Pipe Relocation
Quản trị 19 tháng 10, 2026
Relocating toilet pipes during home decoration is feasible, but it must strictly adhere to regulations and be carried out with caution. Here are the specific key points:

I. Basic Principles of Pipe Relocation
- Main pipes cannot be moved: The main sewage pipes in the bathroom of regular commercial housing (the vertical pipes connecting the entire building) are prohibited from being moved. Otherwise, it may damage the building structure or affect the overall function of the drainage system.
- Branch pipes can be adjusted: The branch pipes in one's own bathroom (such as the downpipes for the toilet and floor drain) can be modified, but appropriate solutions need to be selected according to the relocation distance.
II. Solutions for Different Relocation Distances
- Short-distance relocation (≤40 cm):
- Use special flat relocators or round pipes and maintain a slope of 1%-2% (i.e., a drop of 1-2 cm per meter) to ensure smooth drainage.
- Reduce the number of elbows to avoid blockages caused by residual dirt in the pipes.
- Long-distance relocation (>40 cm):
- The floor needs to be raised by at least 20 cm, and the pipes should be relaid while ensuring the slope.
- Residents with higher floor heights can choose to raise the floor (by at least 5 cm), but it should be noted that raising the floor may increase the difficulty of cleaning and is prone to blockages due to insufficient slope.
III. Precautions for Special House Types
- Sunken bathrooms:
- The sewage pipes can be freely modified, but the floor should be backfilled with red bricks, steel bars, and cement mortar to ensure structural stability.
- Same-floor drainage:
- The drainage pipes are located on the same floor. When making modifications, there is no need to consider the residents downstairs, but it is necessary to ensure compliance with building regulations.
- Inter-floor drainage:
- Signatures from the property management and the residents downstairs are required to avoid affecting the ceiling or drainage system of the downstairs residents due to construction.
IV. Key Points to Avoid Pitfalls
- Sealing treatment: The joints of the pipes must be treated with waterproof glue or special sealing rings to prevent bad odors or leakage.
- Structural safety: When cutting grooves in the floor, avoid the steel bars to prevent damage to the load-bearing structure of the floor slab.
- Waterproofing treatment: After construction, redo the waterproof layer and conduct a 48-hour closed-water test to confirm that there is no leakage before restoring the floor.
V. Optional Auxiliary Solutions
- Toilet relocators: They are only suitable for fine adjustments within 15 cm, have significant limitations, and are prone to blockages.
- Professional equipment: For example, the Mitte Bathroom Kirin Pressurized Flushing System can solve problems such as high drainage resistance and air-blockage water blockage after pipe relocation.
Tip: Before making modifications, consult with the property management and the residents downstairs. Prioritize modifications on one's own floor to reduce disputes.




