Toilet Relocation During Renovation

Toilet relocation during renovation mainly involves toilet displacement, with the following common methods:

First, it should be clarified that mobile toilets usually refer to public facilities that can be moved as a whole, while the core of toilet relocation during renovation is the adjustment of the toilet position. The displacement plans vary depending on the drainage method.

1. Using a Toilet Displacement Device This is the most common short-distance displacement plan. An integrated displacement device is suitable for displacements within 20 centimeters, and it is recommended that the displacement distance of a side-pipe displacement device should not exceed 50 centimeters. Key technical parameters: For every 10 centimeters of displacement, at least 0.5 centimeters of slope should be reserved to ensure that sewage can drain naturally. If the displacement exceeds 10 centimeters, it must be used in conjunction with a straight-flush toilet to prevent poor drainage caused by pipe bending in a siphon toilet. When installing the displacement device, ensure the tightness of the interface to prevent leakage.

2. Interlayer Drainage Renovation This is suitable for bathrooms where the drainage pipe is below the ceiling of the downstairs unit. It is necessary to negotiate with the downstairs residents and rearrange the toilet drainage pipe after drilling holes in the floor slab. Implementation difficulties: It requires damaging the downstairs decoration and involves property approval and neighbor coordination, with a relatively low success rate in actual projects. If this plan is adopted, ensure that the slope of the new pipeline meets the standard (usually not less than 2%) and that proper waterproofing is carried out.

3. Same-Floor Drainage Sunken Slab Renovation Bathrooms with a sunken slab (lowered slab space) in a same-floor drainage system have the greatest freedom for renovation. The position of the drainage pipe can be adjusted directly within the sunken slab without crossing the floor slab. Operation points: It is necessary to re-plan the pipeline route to ensure that the slopes of all drainage points (toilets, floor drains, etc.) are reasonable. After renovation, the sunken slab should be backfilled with ceramsite or lightweight concrete to avoid increasing the load on the floor slab.

4. Wall-Hung Toilet Plan By using a wall-mounted toilet, the drainage pipe can be directly connected to the riser, which is suitable for renovations where the distance to the sewer pipe is relatively short. Implementation points: It is necessary to embed a water tank frame in the wall and precisely reserve an inclined hole (usually with a slope of not less than 3%). A niche can be designed above the water tank to increase storage space. This plan has requirements for the wall structure, and non-load-bearing walls need to be reinforced.

Precautions:

• All displacement plans must comply with the "Building Water Supply and Drainage Design Standard" (GB50015-2019).
• When the displacement distance exceeds 50 centimeters, it is recommended to give priority to same-floor drainage renovation.
• After renovation, a 48-hour closed-water test must be carried out to check the waterproofing effect.
• For old houses, due to the limitation of floor slab thickness, the feasibility of displacement needs to be professionally evaluated.