The water that goes in your toilet is the same water that goes out of your faucet where you'd wash your face Correct. So yeah as long as you don't leave anything like stewing. There's no separate pipes for toilet water sink water dishwater or whatever it is Shower water construction though where they do gray water. Well, they'll collect rainwater on the roof and use that to flush the toilets. You want to have semi poo water Rainwater there they're used to go. Mary Lee: I feel good about my skill set to survive.