Installing a Bathroom in a Container House

Installing a bathroom in a container house requires comprehensive consideration of space utilization, functional configuration, and safety. The specific steps and key points are as follows:

1. Determine Container Size and Layout

Plan the interior space based on the container's specifications (e.g., 20-foot or 40-foot standard containers). Prioritize installing the bathroom near the end of the container to minimize interference with other functional areas. Accurately measure dimensions and customize the sizes of facilities such as sinks and toilets to ensure they match the container's structure and avoid space wastage.

2. Container Structure Modification and Infrastructure

For quick-assembly container structures, install exhaust vents (diameter ≥ 150mm) on the side of the container and reserve drainage outlets (diameter ≥ 50mm) at the bottom. Install waterproof power switches. The container material must have load-bearing capacity. If using a second-hand container, inspect the floor for rust and perform rust removal and anti-rust paint application if necessary.

3. Sanitary Facility Configuration

• Entrance and Basic Equipment: Install a moisture-proof door on the front of the container and equip the interior with a sink (preferably ceramic or stainless steel), a mirror, and storage cabinets.
• Excretion System: Choose the type of toilet based on needs (e.g., a direct-discharge toilet requires connection to a septic tank, or a packing toilet can reduce drainage requirements). If space is limited, install a wall-mounted toilet to save floor space.
• Waterproofing: Lay a cement mortar leveling layer on the floor and cover it with waterproofing membrane (e.g., SBS modified bitumen membrane). Seal the corners with neutral silicone structural adhesive and press in waterproofing strips. Install a water stop to prevent water from penetrating into adjacent areas.

4. Drainage and Electrical System Design

• Drainage Piping: Use PVC pipes with a slope ≥ 2% (diameter ≥ 50mm). Pre-drill holes in the side of the container and install waterproof sleeves to avoid structural damage from later cutting. The drainage outlet should be directed outside the container for centralized treatment (e.g., connection to municipal sewage pipes or a septic tank).
• Electrical Wiring: Lay electrical wires through metal conduits on the top of the container, maintaining a distance of ≥ 30cm from water supply and drainage pipes. Use splash-proof sockets (IP44 or higher protection level) and waterproof switches to ensure electrical safety.

5. Ventilation and Dehumidification System

Install a forced exhaust fan (air volume ≥ 100m³/h) and an active dehumidifier to maintain air circulation. Reserve louvered vents on the wall (area ≥ 0.02㎡) to promote natural ventilation. If using solar power, equip with batteries and an inverter to ensure continuous operation of the equipment.

6. Installation Precautions

• Stability: Secure bathroom facilities with welding or bolts to prevent shaking during container transportation or use.
• Material Selection: Use insulated foam color steel sandwich panels or rock wool sandwich panels for wall panels. Choose fiberglass-reinforced plastic for the sewage treatment tank (high corrosion resistance).
• Clean Energy: Depending on environmental conditions, equip with solar panels or small wind turbines to reduce reliance on mains electricity.