What's the difference between a deluxe unit and a flushing unit?

A flushing unit has a mechanical flush mechanism and a separate fresh water tank that pushes waste into the holding tank, while a deluxe unit is essentially a standard toilet with a non-flushing bowl and an added handwash station inside the same compartment. The flushing action reduces immediate odor by sealing waste under water, which is a significant advantage for an event with beer. However, both units require the same service frequency for your six-hour event, a single service after the event is standard, because the holding tank capacity is the primary limit, not the flush. The higher cost of the flushing unit comes from its more complex hardware: the flush valve, freshwater system, and the extra labor to sanitize it. For 150 people over six hours with alcohol, you will need more than the baseline guideline of one unit per 50 to 75 people; plan on a cluster of at least four units to prevent lines. Since your site has easy truck access, the flushing unit's main benefit is user comfort and perceived cleanliness, which may justify the cost for a corporate crowd.