Self-made Mobile Toilet Design

You can refer to the following design ideas and key points for making a self-made mobile toilet:

I. Basic Structure Construction The core structure of a mobile toilet should include a fecal sewage storage device, a floor, walls, a roof, and a mobile device. Taking the modification of a water storage barrel as an example, the barrel can be horizontally cut into upper and lower parts. The lower part serves as the fecal sewage storage tank, and the upper part is transformed into the roof. A door opening is made on the side of the water storage barrel. Sponge strips are installed to form the door frame, and plastic soft boards are embedded to create raised walls, ensuring airtightness and privacy. If a water storage tank and a pallet are used in combination, universal wheels should be fixed at the four corners of the bottom of the pallet. A frame is built above the pallet to support the walls and the roof. The frame material can be lightweight aluminum alloy or anti-corrosion wood, considering both strength and weight.

II. Functional Module Integration

1. Sanitary Ware Installation: Choose a lightweight toilet (e.g., made of plastic) and fix it in the center of the water storage barrel or the pallet. Connect a drain pipe from the bottom of the toilet to the fecal storage tank. If a shower function is required, you can refer to cases and use water pipes to make a simple shower heater. Install a three-way connector to connect the showerhead, and extend the drain pipe to the door as the water inlet pipe for the sink to achieve water recycling.
2. Water Storage and Sewage Discharge System: Make a hole on the side of the water storage barrel and connect it to a direct connector. Place a plastic bucket over it to form a small water storage device for hand washing or toilet flushing. The sewage discharge pipe should be designed as a detachable type for easy cleaning of the fecal sewage in the storage tank.
3. Washroom Equipment Configuration: Make a hole on the door or the wall to install a sink connector, and pair it with a small water pump for water supply. If space allows, you can add a mirror and storage shelves to enhance practicality.

III. Mobility and Stability Optimization The mobile device is crucial. It should ensure that the toilet can move flexibly and remain stable. Choose universal wheels with strong load-bearing capacity and brakes, and fix them at the four corners of the bottom of the structure. If the water storage barrel is used for modification, crossbeams can be added at the bottom of the wooden frame to enhance stability. For the combination of the water storage tank and the pallet, diagonal braces should be added around the frame to prevent tipping over.

IV. Material and Detail Handling The material selection should follow the principle of being lightweight and durable, such as plastic, aluminum alloy, and anti-corrosion wood. The surfaces of the walls and the roof can be painted with waterproof paint to improve moisture resistance. The door can be made by splicing waste honeycomb wooden boards with foam strips to reduce weight. All connections should be treated with glass glue or sealing strips to prevent leakage. If solar power is required, solar panels can be installed on the roof and connected to a battery to supply power for lighting or the water pump.

V. Adherence to Design Principles The design should take into account mobility convenience, cost-effectiveness and durability, environmental protection and ecology, and humanitarian care. The overall height and width of the structure should be reasonably controlled for easy passage through narrow channels. The material selection should be low-cost and easily accessible. The fecal sewage storage device should be airtight and odor-proof to avoid environmental pollution. The internal space layout should consider the comfort of users, such as the height of the toilet and the opening direction of the door.