Relocating the Toilet Position During Renovation

It is feasible to relocate the toilet (马桶) position during renovation, but appropriate methods must be selected based on the relocation distance, drainage method, and building structure, while strictly adhering to construction standards.

I. Short-Distance Relocation (10-40 cm)

Using a toilet offset connector is the most common solution, suitable for adjustments of 10-30 cm, with low cost and minimal modification. However, note the following:

• Slope Requirement: A slope of 1%-3% (i.e., a drop of 1-3 cm per meter) must be reserved during construction to ensure smooth drainage.
• Clogging Risk: When relocating more than 20 cm, it is recommended to raise the floor by 12 cm to increase the pipe slope and reduce the probability of clogging.
• Distance Limitation: The toilet offset connector should not exceed 2 meters in length; otherwise, the flushing effect will significantly decline.
  Safety Recommendation: Relocating 10 cm over a short distance is the most stable option; if relocation of 20-40 cm is required, prioritizing raising the floor or using alternative methods is advisable.

II. Medium- to Long-Distance Relocation (over 40 cm)

1. Raising the Floor and Relaying Pipes
   For longer relocation distances (e.g., over 20 cm), the floor must be raised by more than 12 cm, and the drainage pipes must be relaid. This method can thoroughly resolve slope issues but will sacrifice ceiling height and must be integrated with the overall renovation design.
2. Converting Floor Drainage to Wall Drainage
   The toilet's drainage outlet is changed from the floor to connect to the wall drainage riser, limited to relocation to the adjacent wall of the riser (not to the opposite wall). The advantages include smoother drainage, reduced clogging risk, and the ability to incorporate storage space within a false wall design. However, note the following:
   • A false wall must be constructed to conceal the pipes, which may occupy space;
   • Applicable to both same-floor and inter-floor drainage systems, but inter-floor drainage requires negotiation with the downstairs neighbor.

III. Solutions for Special Building Structures

1. Sunken Bathroom
   The floor slab is inherently lower, allowing free modification of the internal floor. Relocation can be achieved by simply extending or shortening the pipes without the need to additionally raise the floor, but the sealing of pipe connections must be ensured.
2. Negotiating Pipe Modification for Inter-Floor Drainage
   If the drainage system is inter-floor (with the toilet drainage pipe located in the downstairs ceiling), negotiation with the neighbor is possible to modify the drainage pipe position directly downstairs. This method requires the neighbor's consent and may involve property management approval, making it more challenging to implement.

IV. Key Construction Standards

• Slope Standard: Regardless of the method used, the pipe slope after relocation must meet the national standard of 0.02 (i.e., a drop of 2 cm per meter); otherwise, water accumulation and clogging may occur.
• Drainage Method Adaptation: Same-floor drainage systems allow for more flexible modifications; inter-floor drainage systems require caution to avoid damaging the downstairs structure.
• Anti-Clogging Measures: If the pipes become longer or more curved after relocation, it is recommended to reduce the disposal of tissue paper into the toilet and keep a plunger on hand for emergencies.