Which way does it turn?
414963
You may be referring to the Coriolis Effect, which governs the rotation of very large fluids (like weather systems on earth), due to differential forces caused by the rotation of the Earth.  In a relatively small object like a pipe (or yes, even a toilet) the direction of rotation is either random or determined by the geometry of the object.
1119993
This is simply a matter of perspective. From the South Pole, the earth's rotation is clockwise.
325402
Yes\nPut a wall on eithr side of it, leaving no room for it to turn.\nSeal off the end its at.\nPut food at the other end.\nIt will walk backwards.
85444
Earth rotates. Sun on one side.
25693
Down. Clockwise or anti-clockwise rotation is very much dependent on the first impulse when you open the drain, with coriolis force a distant second.
552341
No, actually it is the other way around.
22631
I saw it going down I-44, but it turned left. :)
999767
None, but three lefts make a right turn.
929189
I was just about to ask the same question. It is interesting that it is so evenly divided. Both sides think they are right. What keeps it from tilting one way or the other?
912141
Here are two (see refs.). Note that the second one is a rotating 3-D model.
690292
The direction of rotation is the direction you look in when you see clockwise rotation. It's the same as the positive axis of rotation, sometimes called the spin axis. (It's also the direction a right-handed screw moves in when turned clockwise.) It may initially be hard to imagine rotation as having a direction like this, but consider the inconsistency that arises when you think of it as being in the tangential (rolling) direction as you do now. What distinguishes the motion of the bottom of the wheel from the top, front or back? These all point in different directions, and there is really no reason that one should be any more of an indicator than another. It's as if rolling it on the ground is somehow a higher "priority" than on the ceiling. These directions, and the direction the wheel rolls in, all actually indicate translational (nonrotary) motions that result from rotation, not rotation itself.
392981
Is the speed at which it travels.
448040
Well it depends on your frame of reference... it spins from west to east so if you were looking down on the earth from above the north pole then it's anti-clockwise. If you look from south pole, it's clockwise.
240419
It should flow counterclockwise because of the Coriolis effect.\n\nHowever:\n\n>> But, the Coriolis force is very small, indeed. \n \nCompared to the rotations that one usually sees (tires on a travelling automobile, a compact disc playing music, or a draining sink), the rotation of the Earth is very small: only one rotation per day. The water in a sink might make a rotation in a few seconds and so have a rotation rate ten thousand times higher than that of the Earth. It should not be surprising, therefore, to learn that the Coriolis force is orders of magnitude smaller than any of the forces involved in these everyday spinning things. The Coriolis force is so small, that it plays no role in determining the direction of rotation of a draining sink anymore than it does the direction of a spinning CD. \n\nThe direction of rotation of a draining sink is determined by the way it was filled, or by vortices introduced while washing. The magnitude of these rotations may be small, but they are nevertheless gargantuan by comparison to the rotation of the Earth. I decided to include a picture of a draining sink, and the first one I tried in my house was found to drain clockwise (the opposite of what the silly assertions would have it do here in the northern hemisphere). This direction was determined entirely by the way the tap filled the sink. The direction of rotation of a draining toilet is determined by the way the water just under the rim is squirted into the bowl when it is flushed.<<\n\nI guess you'll just have to observe - I have made the water in kitchen sinks swirl the "wrong" way just for the heck of it, and it doesn't begin to immediately go the "right" way unless I act on it.
912463
since you said "IF",  I think somewhere around the middle gravity will reverse on you and you will have to turn your body around so that you can come up on the other side head first.
356220
Depends on your point of view. If you're hovering above the North pole, the earth rotates counter-clockwise. If you're hovering above the South pole, it rotates clockwise.
808399
Most likely go right, and then turn around.