Mobile Toilet Flush Test

The mobile toilet flush test primarily targets three types: vacuum self-priming, high-pressure air-water mixing, and traditional gravity direct-discharge. The test items cover key performance indicators such as water consumption, solid waste transportation, and residue retention.

Test Items and Methods

1. Water Consumption Test: Use standard measuring tools to measure the freshwater consumption of a single effective flush cycle and evaluate water-saving performance. For example, vacuum self-priming toilets, due to their negative pressure suction design, have significantly lower average water consumption per flush compared to other types, meeting water-saving requirements.
2. Solid Waste Transportation Test: After introducing standard test materials (such as polypropylene balls) and flushing, measure the farthest transportation distance in the pipeline. Vacuum self-priming toilets perform best due to their strong suction, making them suitable for long-distance solid waste transportation.
3. Residue Retention Assessment: Visually inspect and use instruments to detect residues on the surface and inner walls of the toilet bowl after flushing, and grade them according to cleanliness. High-pressure air-water mixing toilets score higher in cleanliness due to the strong impact of high-pressure water flow.
4. Water Seal and Residual Water Test: Use a grid method to measure the coverage area of static residual water at the bottom of the toilet bowl after drainage and check the water seal depth. Insufficient water seals may lead to odor leakage and require special attention.
5. Flow Rate and Speed Test: Record the flow rate change curve throughout the drainage process using a flow meter and timer, and calculate the average drainage speed. High-pressure air-water mixing toilets have the fastest drainage speed due to their high instantaneous flow rate.
6. Noise Test: Measure the maximum A-weighted sound pressure level during the flushing process at a distance of 1 meter from the equipment using a sound level meter. Some traditional gravity toilets may have excessive noise due to structural design issues and require optimization of noise reduction measures.

Test Results and Recommendations

• Performance Differences: Vacuum self-priming toilets have the best water-saving performance, high-pressure air-water mixing toilets excel in cleanliness and speed, and traditional gravity toilets have advantages in overall cost and reliability.
• Existing Issues: Some products have problems such as incomplete drainage, insufficient water seal design, and excessive noise, which require targeted improvements.
• Optimization Directions: Manufacturers should refer to national standards (such as GB/T18092-2008 and GB28379-2012) to balance water-saving, cleanliness, and user experience, and improve the overall performance of their products.