Water ball in Windermere

I spotted this feature outside a hotel in Windermere. Water trickles out of the top of the globe and down the sides. What made me stop and think was that the water stays at the surface of the globe even below the equator. You'd think that gravity would pull the water straight down as a waterfall from the equator, but the water stays stuck to the surface to continue its descent. The ball was not electrically charged. The outer surface of the water certainly experiences surface tension but is it this force that also holds the water onto the surface of the ball? Gravity continues to pull the water downwards but the force from the surface on the water must be stronger than the gravitational pull to stop it leaving the surface. My hypothesis is that if the flow rate were higher then the water would leave the surface at the equator.