A re-circulating water wall system consisting of moving and static channels with two hand pumps. Made from quality treated timber and UV stable plastic tubing. The water from the trough is pumped up to the top where it cascades down creating an example of cause and effect for children to enjoy. The channels at the top are fixed and the channels at the bottom are adjustable using supports that slide between timber slats. A mesh is also supplied to cover the water troughs.