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Mobile Toilet Drainage Location Diagram

Admin September 20, 2026

The mobile toilet drainage location diagram needs to be designed according to the drainage type. Currently, there is no unified standard diagram, but the specific location can be determined and the pipeline route can be planned through the following methods:

1. Same-floor drainage (floor slab lowering) Suitable for housing units where the bathroom floor slab has been lowered (recessed by 250-350mm). In such structures, the toilet position can be freely adjusted within the lowered slab area without penetrating the floor slab. Key points:

  • It is necessary to confirm whether the lowered slab area covers the target location to ensure sufficient space for the pipeline to connect to the main sewage pipe;
  • The pipeline route should follow the principle of the shortest path to reduce the number of elbows and lower the risk of blockage;
  • Although there is no standard diagram, the principle of “arbitrary arrangement within the lowered slab area” can be referred to, and the pipeline slope (usually 2%-3%) can be planned based on the actual lowered slab depth.

2. Same-floor drainage (floor slab raising) By building a high platform of 180-200mm to hide the sewage pipes, it is suitable for housing units without a lowered slab or with insufficient lowering. Key points:

  • The platform needs to reserve inspection holes for easy later maintenance;
  • The sewage pipes need to be embedded inside the platform, and a slope should be set when connecting to the main sewage pipe;
  • The construction steps include measuring the platform height → building the platform → embedding the pipes → laying the floor materials. However, there is no direct diagram, and the pipeline layout needs to be simulated according to the text description.

3. Inter-floor drainage (offset device) Suitable for short-distance offset (100-350mm), it is necessary to chisel out 20-40mm of the ground floor slab and embed an elliptical flat-pipe offset device. Key points:

  • The slope of the offset device should be ≥3%, otherwise, it is prone to blockage;
  • The connection should be fixed with sealant or cement mortar to prevent leakage;
  • Although there is no specific diagram, the principle of “elliptical flat pipe + slope” can be referred to, and imagine the connection method of the pipeline extending from the original sewage outlet to the new position.

4. Inter-floor drainage (wall-mounted drainage modification) By using a hidden water tank and steel structure to hang the toilet on the wall, the sewage pipe is connected to the main sewage pipe along the wall, which is suitable for long-distance offset. Key points:

  • It is necessary to build a low wall to enclose the water tank and pipelines, with a height usually of 800-1200mm;
  • The wall needs to reserve inspection holes for easy later repair;
  • The pipeline route should be arranged vertically or horizontally along the wall to avoid exposure and affect aesthetics.

Summary: The mobile toilet drainage location diagram needs to be designed in combination with the drainage type, housing unit structure, and construction specifications. If a specific diagram is required, it is recommended to contact a professional designer to draw it based on on-site measurement data or refer to standard references such as the Code for Design of Building Water Supply and Drainage.