Mobile Toilet Solutions for Converting a Car into a Bed Car
When converting a car into a bed car, there are five main types of mobile toilet solutions, and it is also possible to achieve in-car toilet functionality through modifications.
I. Pure External Dependency Approach This solution relies on external public toilet facilities, such as public restrooms, service areas, shopping malls, or fast-food restaurants. Its advantage lies in not requiring additional equipment to be carried. However, there are significant limitations: public toilets close early (some close at night), have poor hygiene conditions (heavy odors, low cleanliness), and require advance planning of the itinerary to accommodate the distribution of public toilets. Additionally, during long-distance driving, one may be forced to hold their urine due to the inability to find a suitable public toilet, affecting driving safety and comfort.
II. Liquid-Specific Approach Designed for liquid excretion, this approach uses tools such as bottles, spittoons, or large-diameter buckets. Male car owners often use Maidong bottles or wide-mouth urinals, while females use disposable emergency urine bags (with built-in absorbent resin that can quickly convert liquid into a solid without odor). This solution is small in size and easy to carry but is only suitable for temporary emergencies and cannot handle solid waste. Long-term use may affect the in-car environment due to odors or cleaning issues.
III. Basin + Consumables Approach This approach uses a folding basin or spittoon paired with garbage bags, coagulants, cat litter, or absorbent paper. After excretion, the waste is solidified using coagulants or absorbent materials and then packed for disposal. This solution can handle both liquid and solid waste but requires regular cleaning of garbage bags. The folding basin takes up a relatively large amount of space, and the addition of coagulants or cat litter may increase operational complexity.
IV. Folding Toilet/Packing Toilet Approach The 12-yuan folding toilet sold on platforms like Pinduoduo, paired with coagulants and plastic bags, is an entry-level option. It has a simple structure and is inexpensive but has poor stability. High-end "packing toilets" feature a disposable design, with the plastic bag sealed and discarded directly after use, making operation more convenient but at a higher cost. This solution is suitable for users who are budget-sensitive and seek portability.
V. Box-Type Portable Toilet Approach Represented by the Thetford brand, this solution is recognized by veteran Bilibili users as a high-quality option. It features a dual-chamber design (separate wastewater and freshwater tanks), is equipped with a flushing function and a sealed lid, effectively isolates odors, and supports unified cleaning after multiple uses. However, it is relatively large in size and expensive, suitable for users with high demands for comfort and hygiene.
VI. In-Car Toilet Through Modification Some car owners achieve multi-functional spaces through modifications. For example, when converting a BYD Dolphin into a bed car, a shower area with a self-made water plug and floor drain can be equipped inside the vehicle. Although the toilet design is not explicitly mentioned, such modifications demonstrate the possibility of integrating a simple toilet by optimizing the in-car layout (such as utilizing corner spaces and adding sealed partitions), combined with waterproof materials and a ventilation system to ensure hygiene.
