



Direct answer: A proposed compound combines separate toilet and shower banks, accessible cubicles, handwashing, cleaner storage and water-treatment or pumping modules.
Population, gender and safeguarding needs, climate, water source and disposal route determine the final quantities.
Direct answer: Provide privacy, lighting, internal locks with emergency release, accessible routes, child-safe details and visible management without exposing users. Separate entrances and queuing where the operating context requires it.
Direct answer: Model peak users, fixture flow, cleaning, storage autonomy, treatment losses and tanker frequency. UNHCR’s WASH guidance provides humanitarian planning context.
Direct answer: Confirm sewer, tank, treatment or collection method; define venting, gradients, access and overflow response. Never assume the host site can accept unrestricted discharge.
Direct answer: Use washable finishes, replaceable fittings, floor drainage, handwashing, consumable storage and safe chemical isolation. Detail joints to tolerate repeated cleaning.
Direct answer: Factory-fit fixtures, pipework, electrical distribution, lighting and accessories where transport allows. Site work should focus on supports, connections, testing and safe access.
Direct answer: Confirm the locally adopted building, fire, accessibility, occupational-safety and environmental requirements before design release. Use this project’s selected official safety reference and building or logistics reference as supporting context rather than substitutes for local approval.
Direct answer: Provide the site, occupancy, room schedule, climate, loads, utilities, logistics, installation boundary and approval route. Review ZH-ENG modular building solutions before finalising module quantities and interfaces.