How to Install a Mobile Toilet with Direct Discharge

The installation of a direct-discharge mobile toilet requires step-by-step standardized operations, with the core processes including pre-installation planning and preparation, positioning and leveling of the main body, and detail handling, as detailed below:

I. Pre-Installation Planning and Preparation

1. Site Assessment and Selection

   • Ground Conditions: Preferably choose cement-hardened or asphalt ground to ensure firmness and flatness. For muddy ground, lay crushed stones and compact them, or pour a concrete base (recommended thickness ≥10cm) to prevent sewage pipe misalignment due to settlement after installation.
   • Sewage Discharge Interface: Confirm that there is a municipal sewage pipe network or septic tank interface near the installation point. Measure the distance between the interface and the predetermined toilet location (usually ≤5 meters) to ensure smooth connection of the sewage hose and avoid bending and blockage.
   • Space and Safety: Reserve an obstacle-free passage at least 1.5 meters wide for easy use and maintenance by personnel; avoid low-lying areas prone to water accumulation, and consider wind direction to place the toilet downwind to reduce odor diffusion.

2. Infrastructure Preparation

   • Sewage Pipes: Lead the underground sewage interface to the ground in advance, install an anti-odor floor drain or docking flange (the interface diameter should match the toilet's sewage outlet, commonly DN100 or DN150), and test the sealing performance.
   • Water and Electricity Interfaces: If lighting, exhaust fans, or automatic flushing devices are required, reserve a waterproof power outlet (voltage 220V, ≥1.5 meters from the ground); if hand washing or enhanced toilet flushing is needed, reserve a water supply pipe interface (water pressure ≥0.2MPa).
   • Fixing Devices: Prepare ground fixing rings, expansion bolts (diameter ≥12mm), or windproof cables according to the environment to ensure the toilet can withstand wind levels ≥8.

3. Equipment Inspection

   • Main Structure: Check whether the toilet frame and doors and windows are intact, and whether internal accessories (such as toilet bowls, handrails, and paper holders) are complete and firmly fixed.
   • Sewage Discharge Valve: Focus on testing the switching flexibility of the bottom sewage discharge valve, and check whether the sealing rubber ring is free of cracks or aging to prevent leakage.

II. Positioning and Leveling of the Main Body

1. Transportation and Hoisting

   • Use a forklift or crane for operations. The hoisting belt or forklift tines must be fixed to the dedicated load-bearing structure at the bottom of the toilet (such as steel beams or embedded lifting rings). It is strictly prohibited to hook onto non-load-bearing parts such as the roof or walls.
   • The commander and operator should closely cooperate through gestures or walkie-talkies, moving slowly to avoid severe shaking that could damage the structure.

2. Precise Positioning

   • Slowly lower the toilet until the sewage outlet is aligned above the ground interface. Make fine adjustments (such as manual shifting or hydraulic jacks) to align the centerlines of the two, with a deviation ≤2cm.

3. Level Adjustment

   • Use a level to detect the height difference of the four corners of the toilet. Adjust the adjustable feet at the bottom (usually one per corner, with an adjustment range of ±5cm) or add steel plates (thickness ≤10mm) to make it level, with an error ≤3mm/m to prevent poor sewage discharge or equipment tilting.

After completing the above steps, connect the sewage hose and fix it, test the flushing and sewage discharge functions, and confirm that there is no leakage before putting it into use.