Toilet Bowl Relocation
The relocation of a toilet bowl (toilet) can be achieved through methods such as using a toilet offset flange, raising the floor, or selecting an appropriate method based on the drainage type. It is essential to follow relocation principles and pay attention to installation details.

1. Toilet Offset Flange Method
This method is suitable for small-scale, short-distance relocations, typically ranging from 10 to 30 centimeters, and not exceeding 40 centimeters. Common relocation distances are between 5 and 10 centimeters, with special cases reaching up to 15 centimeters, although it is generally not recommended to exceed this range. Depending on the relocation needs, different types of toilet offset flanges can be selected:
- One-piece toilet offset flange: Suitable for short-distance relocations (usually not exceeding 200mm), with a compact structure and easy installation.
- Oval flat-pipe toilet offset flange: Suitable for longer-distance relocations (usually not exceeding 500mm), with a flat-pipe design that reduces the need for raising the floor height.
- Wall-mounted toilet offset flange: Can meet relocation needs ranging from 190 to 550mm, suitable for wall-hung toilets.
Installation Requirements: Installation must be completed before laying floor tiles, and the drainage slope must be ensured (generally recommended to maintain a 5% slope), with higher slope requirements for longer distances. Usage Risks: Toilet offset flanges increase the number of pipe bends, which may lead to clogging risks, and changes in air pressure can easily cause sewage backflow, affecting flushing performance.
2. Raising the Floor Method
Relocation is achieved by building or raising the floor, suitable for situations requiring larger relocation distances. Construction may require the use of a toilet offset flange in combination, and the drainage slope must meet standards. Operation Points: For long-distance relocations, the pipe must be raised by approximately 5mm for every 100mm of movement; when using a flat-pipe toilet offset flange, it is necessary to create grooves and level and tile the floor to make it basically level with the final floor height.
3. Selecting a Method Based on Drainage Type
- Same-floor drainage: The drainage pipe is located on the homeowner's floor, allowing direct pipe modification or the use of a toilet offset flange, with relatively low construction difficulty.
- Inter-floor drainage: The drainage branch pipe is installed below the floor of the current level, requiring methods such as using a toilet offset flange, raising the floor, converting floor drainage to wall drainage, modifying the sewage pipe, or negotiating with neighbors to modify the pipe for relocation.
4. Relocation Principles
- Distance Control: It is recommended to control the relocation distance within 30 centimeters, with a maximum distance not exceeding 1 meter, to reduce the risk of clogging.
- Risk Avoidance: The longer the relocation distance and the longer the horizontal drainage pipe, the higher the probability of clogging, necessitating careful evaluation of necessity.
- Stability Priority: Avoid making changes unless absolutely necessary to prevent issues such as water leakage and seepage caused by modifications.
5. Installation Precautions
- Timing Selection: Installation of a toilet offset flange must be carried out before laying floor tiles to ensure synchronous construction of the pipe and floor structure.
- Slope Adjustment: Adjust the drainage slope according to the relocation distance, increasing the slope accordingly for every additional 100mm of distance.
- Height Balancing: When using a flat-pipe toilet offset flange, it is necessary to create grooves and process the floor to make it level with the final floor height, avoiding any impact on the user experience.




