200-person wedding, 6-hour reception, open bar. How many flushing units?
My wedding is in May for 200 guests, with a six-hour reception and an open bar on my parents' property. We are splurging on flushing portable toilets because we want a nicer guest experience. The ground is level grass and the truck access is clear. The rental company has deluxe portable toilet units with a flushing bowl and a small sink. I know the standard planning advice is to add more units when alcohol is served and for a longer event. But does the math for how many units we need change when using flushing units compared to standard ones? Do guests use them more quickly because they are nicer, or does the flushing mechanism mean they stay cleaner longer with the same service frequency? I'm trying to balance guest comfort with not over-ordering.