Homemade In-Car Portable Mini Toilet

There are mainly two methods for making a homemade in-car portable mini toilet: transforming a used laundry detergent bottle and using common items for emergency purposes.

Transforming a Used Laundry Detergent Bottle

Remove the cap from an empty plastic laundry detergent bottle and take off the bottle spout. Drill a hole in the cap that can accommodate a PVC pipe fitting and install the fitting. Find a soft hose from a sink drain and connect one end with glue to a plastic pipe fitting with a cap, and the other end with glue to the PVC pipe fitting on the cap. Assemble it back onto the bottle. Pour some water into it to test that it doesn't spill out, and then place it under the car seat. It can be taken out for emergency use when there are no service areas on the highway. This method uses waste items, has a relatively low cost, but requires a certain level of hands-on skills during the making process. Also, its capacity is limited and is only suitable for emergency urination.

Using Common Items for Emergency Purposes

• Material Preparation: The core tools are diapers and sealable plastic bags. Optional auxiliary materials include large plastic bags, small cardboard boxes, and superabsorbent polymers. Diapers provide absorbency, plastic bags are used for sealing and preventing leaks, cardboard boxes can be used to build a simple structure, and polymers enhance absorbency.
• Emergency Urination Solutions
  • Diaper Filling Method: Take out some cotton and absorbent particles from a diaper and stuff them into a sealable plastic bag. Leveraging the high absorbency of the diaper, it can quickly absorb urine and prevent side leaks, with a cost of about 1 yuan.
  • Using Ready-Made Products: There are portable toilets specifically designed for children available on the market, with a unit price of about 4 yuan, which can be purchased and used directly.
• Emergency Defecation Solutions
  • Large Plastic Bag Method: Use a large plastic bag (such as a garbage bag) and lay it inside the car or in a fixed container. Let the child defecate directly into it and then seal and discard it.
  • Cardboard Box Combination Method: Place a plastic bag at the bottom of a small cardboard box to form a simple enclosure structure, which both protects privacy and facilitates cleaning.
• Absorbency Enhancement Tips: Add a small packet of superabsorbent polymer (such as the ingredient in sanitary napkins/diapers) into the sealable plastic bag. When it comes into contact with water, the outer packaging will automatically dissolve, quickly solidifying the excrement and reducing odors and the risk of leaks.
• Precautions: After use, seal the plastic bag and discard it as soon as possible to avoid long-term storage. The cardboard box structure should be firmly fixed to prevent tipping over. Keep superabsorbent polymers out of the reach of children to prevent accidental ingestion.