Mobile Toilet Sewer Renovation

Mobile toilet sewer renovation requires selecting appropriate methods based on specific needs and the building structure, and strictly adhering to construction standards. Here are the key considerations:

I. Feasibility of Bathroom Sewer Pipe Modification Both old and new houses can undergo sewer pipe renovation, but the plan must be chosen based on the building structure. If the house is on the ground floor or has a sunken bathroom, there is more space for modification and the operation is less difficult. For high-rise residential buildings, modification should primarily be carried out on one's own floor to avoid damaging the structure below. Before modification, it is necessary to consult with the property management and the residents downstairs to ensure that the plan complies with building codes and does not cause disputes.

II. Toilet Relocation Methods and Limitations

1. Applicable Scenarios for Relocation Devices:
   • Short-distance relocation (≤15cm): Choose a dedicated relocation device with a streamlined design and no right-angle bends to reduce drainage resistance.
   • Ultra-short distance (≤200mm): Use an integrated toilet relocation device, which is easy to install and has strong sealing properties.
   • Medium distance (≤500mm): Employ an oval flat-pipe relocation device. Construction should be carried out with a slope of raising 5mm for every 100mm to ensure smooth drainage.
2. Other Relocation Plans:
   • Raising the floor: Houses with sufficient ceiling height can achieve relocation by raising the bathroom floor by more than 5cm, but this can easily lead to toilet blockages and should be used with caution.
   • Sunken bathroom renovation: Relocation is achieved by adjusting the position of the sewage pipes. It is recommended to use red bricks, steel bars, and cement mortar as backfill materials to enhance the stability of the floor structure.
   • Cross-floor pipe connection: If the relocation distance exceeds 500mm, it is necessary to consult with the residents downstairs and connect new pipes from their ceiling directly to the main sewer pipe. Although the construction is complex, it is the most reliable method.

III. Key Points for Washbasin and Floor Drain Renovation

1. Changing the washbasin's floor drain to a wall drain: This can free up floor space for storage, but a deodorizing trap should be installed and the drainage slope should be maintained to prevent odor backflow.
2. Floor drain relocation: When cutting slots in the floor, structures such as steel bars should be avoided. However, newly added floor drains may suffer from poor drainage due to insufficient slope, so it is advisable to prioritize using the original floor drain positions.

IV. Core Construction Standards

1. Materials and Craftsmanship: Choose pipes from well-known brands. The joints should be sanded and then coated with waterproof glue to ensure sealing. The work must be carried out by professional craftsmen to avoid leakage caused by improper construction.
2. Closed-water test: After the renovation is completed, a 48-hour closed-water test should be conducted to check for leaks in the pipes and joints.
3. Consultation and filing: Before the renovation, submit the plan to the property management to confirm whether it involves load-bearing structures or public pipes. Communicate the construction details with the residents downstairs to reduce the risk of disputes.