Toilet Drainage Relocation

Toilet drainage relocation, also known as toilet shifting, requires comprehensive consideration based on drainage type, relocation principles, and relocation methods. Details are as follows:

I. Determine the handling direction based on drainage type

1. Same-floor drainage: The drainage branch pipes are located within the same floor, eliminating the need to penetrate the floor slab, making rectification and maintenance more convenient. If relocation is required, the pipe position can be directly adjusted on the same floor, or a relocator can be used to resolve the issue of misaligned drainage outlets.
2. Inter-floor drainage: The drainage branch pipes need to penetrate the floor slab to connect to the main drainage pipe on the floor below, involving neighbor relations in rectification, making the operation more complex. Priority should be given to negotiating with neighbors or indirectly adjusting through methods such as raising the floor or converting floor drainage to wall drainage.

II. Follow relocation principles to control risks

1. Type of floor slab reduction determines the relocation range:
   • No floor slab reduction: The relocation range is relatively small, typically within 100-300mm, limited to renovations within one's own home.
   • Partial floor slab reduction: The toilet position can be freely adjusted within the reduced floor area of the bathroom, but overall adjustments are restricted.
   • Full floor slab reduction (sunken slab): The toilet position can be arranged and adjusted arbitrarily, offering the highest flexibility.
2. Drainage method affects relocation approach:
   • Same-floor drainage is suitable for direct pipe modification or the use of relocators.
   • Inter-floor drainage requires a combination of relocators, floor raising, floor-to-wall drainage conversion, and other methods, with pipe modification through neighbor negotiation if necessary.
3. Apartment layout restricts relocation distance:
   • The longer the relocation distance, the longer the horizontal drainage pipe, increasing the risk of blockage.
   • It is recommended to control the relocation distance within 30 centimeters, with a maximum not exceeding 1 meter, to reduce the probability of poor drainage.

III. Choose an appropriate relocation method

1. Use a toilet relocator: Suitable for situations where the drainage outlet position does not match, achieving connection by extending or offsetting the pipe. However, the relocation distance is limited, generally not exceeding 300mm, as it may otherwise affect drainage performance.
2. Direct pipe modification: For same-floor drainage, pipes can be relaid to the new position, ensuring a reasonable slope (usually ≥2%) to avoid water accumulation.
3. Floor raising: By raising the bathroom floor (approximately 10-15cm) to conceal the newly added drainage pipe, suitable for inter-floor drainage with a longer relocation distance, but sacrificing ceiling height.
4. Floor-to-wall drainage conversion: Converting toilet drainage to discharge from the wall requires the installation of a concealed cistern and wall-mounted toilet, saving space and enhancing aesthetics, but with higher construction costs.
5. Main drainage pipe modification: Requires negotiation with the property management and neighbors to relay the main drainage pipe to the new position, suitable for overall renovation needs, but with complex operations and high costs.

Summary: Toilet relocation requires comprehensive consideration of drainage type, floor slab reduction conditions, relocation distance, and method, prioritizing schemes that minimize the impact on drainage and strictly adhering to construction specifications to ensure long-term usage effectiveness.