Think the surface of the water as a speaker. As you piss full force you make big ripples just like a subwoofer would make big ripples to produce a low pitch. As the force of the piss gets lesser, the ripples get smaller and thats where you get those nice mids and high tones.
"if you put peanut butter on your balls, i'd lick it off..." carlos_the_dog
"speaking of this thread...is it illegal to masturbate to photos of yourself as a child?"