I grew up swimming in ponds, rivers and lakes as well as public swimming pools. Ain't nothing in water coming out of the rinse in my laundry or the shower any worse than that. In fact, it would probably be cleaner than some of the ponds we used to play in
For those paranoid about fecal matter....
Q: If I flush the toilet, does bacterial really get on my toothbrush?
A: In episode 12 of Mythbusters (see
http://dsc.discovery.com/.../episode_08.html )they did a study of tooth brushes in the bathroom, about 50 toothbrushes hung at varying distances from the toilet. As a control, they put one toothbrush in a glass in the breakroom (about 50') from the bathroom, and covered it with a glass. Each toothbrush, they would wet with warm water each day for 2 weeks. At the end of it, they had the toothbrushes checked for a specific bacteria found in fecies. *Every* one of the tooth brushes, including the controls in the break room, showed evidence of the bacteria.
Turns out that the bacterium is so ubiquitous that it didn't matter how far the toothbrushes were away from the toilet. (Or is the toilet is closed, I presume.)