Gross Error in new Directory?

We've made way too much of this already. Even if the wrong directions are followed, the problem caused is easily remedied; no one dies, no one is injured. When we were younger we camped with a large group. One member always left the black tank valve open and flushed the tank at the end of the weekend. He as well as his wife and kids are still alive. Let it go.

I also agree with the previous comment that this is not the definitive instruction manual for "RVing".