How to Relocate a Toilet on a Low Floor

Relocating a toilet on a low floor requires selecting an appropriate method based on the bathroom's drainage system, primarily divided into two scenarios: same-floor drainage and cross-floor drainage, as detailed below:

For same-floor drainage (where the drainage pipes are located within your own bathroom, i.e., a sunken bathroom), relocating the toilet is relatively straightforward. You can directly modify the drainage pipes and arrange them freely within the lowered floor slab, with fewer restrictions on relocation, provided the building has this structural feature.

For cross-floor drainage (where the drainage pipes pass through the floor slab and are located on the ceiling of the bathroom in the downstairs neighbor's unit), there are several approaches:

• Wall-mounted drainage: This requires being close to the original pipes, making pipe installation more cumbersome and potentially affecting the overall layout, so it is not highly recommended.
• Raising the floor: By constructing a base platform 180-200 millimeters high to embed the sewage pipes, this method is suitable for longer relocation distances and offers relatively flexible layout options. However, it raises the floor level, affecting aesthetics and usability, and increases the risk of tripping, so careful consideration is needed.
• Using a toilet offset flange: This is suitable for small-scale, short-distance relocations, typically ranging from 10 to 30 centimeters, with a maximum recommendation of not exceeding 40 centimeters. It involves minimal modifications and low costs but may affect flushing performance and increase the risk of clogging. During installation, a slope of 1% to 3% should be reserved for proper drainage, and thorough waterproofing must be ensured.
• Cutting a new hole in the floor slab for relocation: Directly cutting a new hole in the floor slab yields good results but is difficult to implement, as most downstairs owners are unlikely to agree, and subsequent formwork and finishing work are required.
• Modifying downstairs pipes: This requires strict consent from the downstairs occupants and property management, with professional personnel performing the pipe work downstairs. This method involves coordination among multiple parties, so thorough communication is essential before implementation.

Additionally, it is advisable to avoid relocation if possible. The relocation process is troublesome, and improper execution can easily lead to clogging and higher waterproofing requirements. If relocation is necessary, be sure to choose a professional construction team to ensure quality and avoid subsequent issues.