Porta Potties & Restroom Trailers for Rent | United Rentals- hand sanitizer cuanto cuesta rd ,Portable sinks or hand sanitizer stations are required if your event includes food service. How many porta potties do I need for my jobsite? A good rule of thumb is to have a one portable restroom for every 10 workers for a 40 hour work week, and then increase the number of porta potties as your workforce and work hours increase.Tufesa Cheap Bus Tickets, Schedules, Stations and more ...Yes, Tufesa has a toilet on board. The toilet is located at the back of the bus or near the middle. Remember to bring hand sanitizer with you, as most buses do not have running water. Does Tufesa offer meals or snacks during the bus trip? There are no meals or snacks offered on Tufesa buses.