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Guizhou Mobile Toilet Decoration: Dry and Wet Design

Admin October 02, 2026

The dry and wet design of mobile toilet decoration in Guizhou needs to be combined with climate characteristics and temporary needs, focusing on material selection, drainage, sanitation, and ventilation design, while optimizing the dry-wet separation structure.

1. Material Moisture Resistance is Fundamental

Guizhou has a humid climate with frequent rain and fog, so the materials for mobile toilets must have strong moisture and rust resistance. For the outer shell, it is recommended to use reinforced fiberglass-reinforced plastic (FRP) or galvanized steel sheets with outdoor anti-rust coatings. These materials are highly corrosion-resistant and can withstand long-term humid environments. The inner tank should be made of one-piece high-density polyethylene (HDPE), which has few seams and good sealing properties, preventing sewage leakage and internal moisture. If further moisture resistance is required, waterproof coatings can be applied to the interior walls to reduce moisture penetration.

2. Drainage and Anti-Waterlogging Design are Key

Guizhou is rainy, so the drainage system of mobile toilets must be adapted to the terrain to prevent waterlogging from affecting use. For short-term construction site projects (within 3 months), it is recommended to set up 1-2 compartments with a drainage slope of ≥2% to ensure rapid rainwater drainage. For long-term projects (more than half a year), at least 3 compartments are required, and the diameter of the drainage pipes should be increased (recommended ≥110mm) to prevent blockages. Additionally, the floor can be paved with non-slip tiles or use one-piece non-slip flooring to reduce waterlogging residue.

3. Sanitation Standards and Pollution Prevention Must Meet Requirements

According to the requirements of the Guizhou Provincial Housing and Urban-Rural Development Department, mobile toilets must be equipped with flushing systems and anti-mosquito and fly designs, and priority should be given to models with fecal tanks. The fecal tanks must have strong sealing properties and be regularly cleaned and transported (recommended every 3-5 days) to prevent sewage overflow and environmental pollution. If used in scenic spots or public places, ultraviolet disinfection lamps or biodegradation treatment devices can be added to further improve sanitation levels.

4. Ventilation and Deodorization Functions Need to be Enhanced

Guizhou has large temperature differences between day and night and frequent rain and fog, so mobile toilets are prone to accumulating moisture and odors. Professional manufacturers can configure solar exhaust fans or automatic induction flushing systems to reduce moisture through forced ventilation. Additional ventilation windows can be installed on the top to improve air circulation through natural convection. If conditions permit, activated carbon packs can be placed inside the toilet or deodorizing agents can be sprayed to assist in removing odors.

5. Optimization Suggestions for Dry-Wet Separation Structure

If dry-wet separation is required, reference can be made to conventional bathroom designs, but it must be combined with the temporary and transportable nature of mobile toilets. Priority should be given to lightweight and easily disassembled partition materials, such as PVC panels, acrylic panels, or aluminum alloy frames + glass, which ensure structural stability and are easy to disassemble and transport. The partition height is recommended to be ≥1.8 meters to prevent water splashing. Waterproof barriers can be installed at the bottom to prevent sewage overflow. Additionally, a floor drain should be set up in the dry area (such as the sink) to ensure smooth drainage.