"The water comes from pipes and the pipes get it from a reservoir. It's kind of like... umm, kind of like a moat under ground. It carries water to where it can be cleaned before it comes to us. And the dirty water goes down the drain and gets carried away." Anna wasn't very good at explaining things to the little ones. She was glad there was a couple years before Aiden would start asking questions she didn't quite know the answers to.
After wiggling the kid out of his pants, Anna lifted him with a tiny grunt and settled him in the bathtub. She let it fill up some more and reached on the other side of the toilet (where he couldn't see) to materialize some No More Tears shampoo and the bucket of toys she'd bought for Castiel earlier. Anna dumped the bucket into the water and grinned at him. "So did you catch any frogs today?"