The Straight Recirculating Triple Water Trough has three levels of water troughs and a pump system that recycles water from one end to the other. As long as someone continues to operate the pump, the water will keep flowing. Kids will love watching toy boats and rubber duckies float down the river as the water twists and turns through the series of dams. The recirculating pump system makes it so that you don’t need to worry about connecting a hose to it, and can also be used to teach children about the importance of water conservation.