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How to Make a Mobile Toilet by Yourself

Admin October 09, 2026

You can choose to transform a water storage tank or use emergency solutions to make a mobile toilet according to your needs. The specific methods are as follows:

I. Transforming a Water Storage Tank into a Mobile Toilet (Requires Tools and DIY Skills)

  1. Building the Basic Structure

    • Prepare a large water storage tank and use an angle grinder to split it vertically in half. Keep one half as the main body.
    • Install universal wheels at the four corners of a wooden board for easy movement. Fix wooden strips to the upper edge of the tank with self-tapping screws to increase the structural height and provide support for installing walls and a roof later.
  2. Constructing the Door Frame and Walls

    • Cut a doorway on the side of the water storage tank. Stick sponge strips on both sides of the doorway to form a sealed door frame structure and prevent odor leakage.
    • Insert plastic soft boards between the wooden strips to form raised walls and enhance privacy. Invert the other half of the water storage tank and place it on top of the wooden strips as the roof, and fix it with screws.
  3. Installing Indoor Fixtures

    • Drainage System: Drill a hole at the bottom of the tank and install a drain pipe as a floor drain, connecting it to an external sewage tank.
    • Water Storage Device: Drill holes on the side and bottom of a plastic bucket, connect it to a water pipe through a direct joint, and fix the plastic bucket on the roof as a water storage tank. Make a simple bathroom heater with a water pipe and connect it to the water inlet pipe.
    • Sanitary Facilities: Install a three-way joint below the water inlet pipe and connect a showerhead. Place a toilet and fix the water tank, seal the edges with glass glue. Extend the drain pipe to the doorway and connect it to the water inlet pipe of a washbasin to enable washing functions.

II. Emergency Mobile Toilets (Quick and Simple Solutions)

  1. Emergency Solutions for Urination

    • Diaper Filling Method: Take out the cotton and absorbent particles from diapers and put them into a sealed plastic bag. Use their high water-absorbing capacity to quickly absorb urine. The cost is about 1 yuan.
    • Using Ready-made Products Directly: Purchase a children's portable toilet (the unit price is about 4 yuan), which requires no assembly and can be used immediately.
  2. Emergency Solutions for Defecation

    • Large Plastic Bag Method: Lay a large garbage bag in a vehicle or a fixed container. Seal and discard it after defecation, which is suitable for temporary use.
    • Cardboard Box Combination Method: Use a small cardboard box and pad it with a plastic bag at the bottom to form a simple enclosure, protecting privacy and facilitating cleaning.
  3. Tips for Enhancing Water Absorbency

    • Add a small packet of superabsorbent polymer (such as the ingredients in sanitary napkins or diapers) to the sealed plastic bag. When exposed to water, the outer packaging will automatically melt and quickly solidify the excrement, reducing odor and leakage risks.

Precautions: Transforming a water storage tank requires certain tool operation skills and pre-planning of the sewage discharge path. Emergency solutions are suitable for short-term use, and excrement should be cleaned up in a timely manner to avoid sanitation problems.