Mobile Toilet Pipe Rental

When renting pipes for mobile toilets, it is essential to focus on aspects such as pipe material, pipe diameter and slope design, connection to municipal sewer networks, and construction and acceptance. Here are the specific key points:

1. Pipe Material Selection
The sewage pipes of mobile toilets need to be in long-term contact with excrement and chemical cleaning agents. Corrosion resistance and mechanical strength are the core indicators. It is recommended to use UPVC pipes (unplasticized polyvinyl chloride pipes) or PE pipes (polyethylene pipes):

• UPVC pipes: They have strong chemical stability, are resistant to acid and alkali corrosion, have a smooth inner wall that is not prone to clogging, and have a relatively low cost. They are a common choice for small- and medium-sized events.
• PE pipes: They have good flexibility and strong impact resistance, are suitable for low-temperature environments or areas with complex terrain, but their price is slightly higher than that of UPVC pipes.

2. Pipe Diameter and Slope Design
The pipe diameter needs to be dynamically adjusted according to the number of users. It is recommended that the main pipe diameter of a single toilet group be no less than 110mm, and the branch pipe diameter be no less than 50mm. If the number of users exceeds 50 people per hour, the main pipe diameter should be expanded to more than 160mm to avoid clogging.
The pipe slope directly affects the sewage discharge efficiency. The standard slope is 3%-5% (that is, a drop of 3-5 centimeters per meter). A slope that is too small can easily lead to sedimentation, while a slope that is too large may cause water flow scouring and damage the pipes.

3. Specifications for Connection to Municipal Sewer Networks
Priority should be given to connecting the sewage pipes to the nearby municipal sewer network, which needs to meet the following conditions:

• Connection location: The distance from the mobile toilet should be no more than 50 meters to reduce the length of the pipes and lower the risk of clogging.
• Elevation matching: The elevation of the sewage outlet of the mobile toilet should be lower than that of the connection point of the municipal sewer network to utilize gravity for natural discharge.
  If it is not possible to connect to the municipal sewer network, a temporary septic tank or sump pit needs to be set up:
• Septic tank: The capacity should be calculated according to the number of users (for example, about 3 cubic meters are needed for 50 people per day), and it should be regularly cleaned and transported by a professional company.
• Sump pit: It should be equipped with a sewage pump and is suitable for scenarios where gravity discharge is not possible. However, it is necessary to ensure a power supply and odor control.

4. Construction and Acceptance Precautions

• Construction requirements: The pipe connection should adopt the gluing or hot-melt process to ensure airtightness. Buried pipes should be wrapped with an insulation layer (in northern regions) or an anti-corrosion coating.
• Acceptance standards: The water flushing test should last for more than 2 hours to check for no leakage. The error in slope measurement should not exceed ±1%. The septic tank should undergo a full-water test for 24 hours to confirm no settlement or leakage.

5. Rental Service Selection
Some companies (such as Beijing Jiuyuan Cleaning Service Co., Ltd. and Tianjin Jinhong Pipe Cleaning Service Co., Ltd.) provide one-stop services including pipe rental, installation, and maintenance, which can reduce the cost of self-procurement and technical risks. Before renting, it is necessary to clarify the scope of services (such as whether it includes septic tank cleaning and transportation, pipe maintenance, etc.) and the division of responsibilities.