I mean this is all beside the point that Sonique came out as trans in the season 2 reunion and Monica Beverly Hills came out on the runway during Season 5
I really struggle to believe that in the heavily unionised TV production industry PAs were ferrying bottles of piss from the mainstage because Ru forbid the girls from going to the toilet!
It's actually been documented many times over the years that on filming days the queens are in front of the camera for hours and hours and when they ask to go to the bathroom they're told no. I remember even a queen (I think Isabelle Brooks?) had to sneak and use Michelle's toilet without anyone knowing.