Subject: Water / Gravity

I understand that water going down the drain in the northern
hemisphere swirls down the drain clockwise.  In the southern
hemisphere it swirls counter clockwise.  My question is two 
part;

    What direction does it swirl in exactly on the
    equator or at the point of equalibrium?

    Does water swirl in limited gravity situations
    such as a space station?  How would its direction
    be affected by its place in orbit?

Thank you.

Re:Water / Gravity