Methods for Relocating the Toilet on the Second Floor

The method for relocating the toilet on the second floor should be selected based on the drainage system, with specific plans as follows:

I. Inter-floor Drainage (Pipes Located on the Ceiling of the Downstairs Neighbor)

1. Negotiate with the Downstairs Neighbor for Pipe Relocation It is necessary to create a new hole in the downstairs ceiling to relocate the drainage pipes to a new position. After completion, the hole needs to be sealed with a mold (such as cement) and the decoration restored. This plan requires the consent of the neighbor and may involve compensation negotiations. The construction period is relatively long, but the relocation distance is flexible, making it suitable for long-distance adjustments.

2. Convert to a Wall-mounted Toilet If the new position is close to the sewage riser (such as in the corner of the bathroom), the traditional floor-mounted toilet can be converted to a wall-mounted one. A false wall can be built to hide the pipes and connect to the main pipe. Note the thickness of the false wall (usually 15-20cm), which may occupy some space, but offers high drainage efficiency and aesthetic appeal.

3. Use a Toilet Relocator Suitable for short-distance relocation (recommended not to exceed 2 meters), a toilet relocator extends the drainage pipe to connect the original sewage outlet with the new toilet position. The floor needs to be raised and a drainage slope of more than 3% set; otherwise, blockage may occur due to insufficient slope. The longer the relocation distance, the higher the risk of blockage, so careful evaluation is required.

4. Raise the Entire Floor By raising the bathroom floor (such as by laying cement mortar or lightweight materials), space is reserved for the pipes to achieve relocation. This plan significantly increases the floor height occupation (usually raising it by 10-15cm), which may affect the user experience and pose a tripping risk for the elderly and children. It should only be considered as a last resort.

II. Same-floor Drainage (Sunken Bathroom, Pipes on the Same Floor)

The drainage pipes can be directly relaid in the sunken space of the bathroom without relying on the downstairs area. There is high flexibility in relocation, allowing for flexible adjustment of the toilet, floor drain, and other positions. However, note the following:

• The original waterproof layer needs to be destroyed, and waterproofing and a closed-water test need to be redone after construction;
• After relocation, ensure that the slope of the new pipes meets the standards (floor drain slope ≥ 5%, toilet slope ≥ 3%) to avoid water accumulation.

III. Key Considerations

1. Confirm the Drainage System: Look up to see if there are pipes on the bathroom ceiling. Pipes indicate inter-floor drainage, while no pipes indicate same-floor drainage. The plan selection should be adjusted accordingly.
2. Avoid Long-distance Relocation: Siphon toilets are sensitive to the length of the horizontal pipe. Relocation exceeding 1.5 meters may affect the flushing effect. It is recommended to prioritize a direct-flush toilet or shorten the relocation distance.
3. Relocate Only When Necessary: Relocation may destroy the original waterproof structure and increase the risk of blockage. If there are no space limitations or special needs, it is recommended to maintain the original layout.

Tip: Before construction, contact the property management to confirm whether the building structure allows pipe relocation, and prioritize choosing a qualified decoration company to ensure compliance with building codes.