Every event planner eventually asks the same question: how many porta potties does a crowd actually need? The industry rule of thumb is one unit per 50 guests for the first four hours, then one additional unit per 50 guests for each additional four hours. Add a handwashing station for anything serving food, and double capacity for events serving alcohol.
Placement matters as much as count. Units should sit on level, stable ground, away from food service and dining areas but still an easy walk, with clear sightlines so guests are not searching in the dark. Service access for the pump truck is non-negotiable; plan the layout around a route the truck can actually reach.
For multi-day events, ask your vendor about mid-event servicing, not just delivery and pickup. Providers who specialize in hospitality and event work, like Hospitality Porta Potty, build their service schedules around show days rather than a generic weekly route, which is the detail that actually keeps a weekend event clean.

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