Water effect play units and structures

A water effect play unit comprising:

• a. one or more support posts;
• b. a crossbar connected to at least one of the one or more support posts;
• c. a water tank positioned on the crossbar, such that at least a portion of the crossbar is positioned in an interior of the water tank;
• and
• d. a water transport system configured to transport water to the water tank;
• wherein the water tank comprises a first end having one or more openings and a second end,
• wherein the water tank is biased into a filling position in which the first end of the water tank is located above the second end;
• wherein upon filling of the water tank with an activating volume of water, the tank rotates from the filling position to a releasing position in which the first end of the tank is located below the second end, such that water is released from the tank through the one or more openings;
• wherein the water transport system runs through at least a portion of the crossbar;
• and
• wherein the portion of the crossbar positioned in an interior of the water tank comprises one or more apertures through which water is delivered from the water transport system directly to an interior of the water tank.