Someone else also suggested the use of portable toilets. This would eliminate the load from the toilets, but there's a locker room, whirl pool tubs, and dishwashers to contend with as well.
I'm having the same problem. I need to design a pump station for a large 25,000 sft. home with a total of 124 dfu. There will only be five individuals living in the home, but at some point, I'm certain they'll have a large party with perhaps 300 guests.
Does anyone know of a good method for...