How to Renovate Under Mobile Toilets
The renovation under mobile toilets should be carried out by combining the original structure and usage requirements, and achieving functional improvements through pre-renovation surveys, foundation waterproofing, optimization of the water supply and drainage system, and module upgrades. The specific plan is as follows:
I. Pre-renovation Survey and Benchmark Parameter Verification
Before renovation, accurately measure the structural parameters of the toilet compartment: wall panel thickness, distribution of load-bearing joists, and flatness of the ground base. Mark the positions and elevations of water supply and drainage interfaces. Locate the embedded circuit wiring and insulation layer range to avoid drilling and damaging pipelines. Clarify the renovation priorities based on the usage scenario: construction site stations require enhanced wear resistance and ease of cleaning; scenic spot facilities need to balance aesthetics and passenger capacity; low-temperature regions in the north need to check for frost heave risks; emergency shelters need to reserve space for barrier-free renovations. At the same time, identify existing faults, mark issues such as damaged waterproof layers, blocked/rusted pipelines, and damaged sanitary ware, and create a detailed inventory with centimeter-level precision.
II. Foundation Waterproofing and Ground System Upgrade
Remove the original damaged sanitary ware and aged flooring materials down to the base compartment panel layer. Fill and seal compartment panel cracks with single-component polyurethane sealant. Apply a 15-centimeter-wide polyester fabric strip at the joint between the wall panel and the ground to enhance crack resistance. Apply a 2-millimeter-thick hand-applied polyurea waterproof coating overall. The waterproof layer on the shower area walls should extend upward by 1.8 meters, while other areas should extend upward by 30 centimeters. After drying, conduct a 24-hour closed-water test to confirm no water leakage before laying the flooring materials. The flooring materials should preferably be lightweight to ensure a ground load-bearing capacity of ≤50 kilograms per square meter.
III. Water Supply and Drainage System Renovation (Core of Toilet Relocation)
For short-distance relocation (≤200mm), use an integrated toilet relocation device; for medium-distance relocation (200-500mm), adopt an elliptical flat pipe relocation device, raising the pipeline slope by 5mm for every 100mm of movement, with a ground slot depth of 20-40mm; for long-distance relocation (>500mm), switch to a wall-mounted toilet or a raised platform solution, requiring the relayout of wall or ground pipelines for wall-mounted toilets. The renovation should comply with the drainage logic of the entire building to avoid affecting neighbors downstairs. Cross-floor pipeline modifications require property management approval and neighbor consent.
IV. Other Module Upgrades (Optional)
Repair ineffective exhaust fans or install new air ventilation equipment to optimize ventilation and odor control; add glass partitions or shower curtains for wet-dry separation; install electric tracing tapes or insulation pipe sleeves in northern regions for frost protection. All renovations must not damage the main load-bearing structure of the mobile toilet and should balance cost and risk to ensure long-term durability.
