Every once in a while we are asked to put a water fall where we normally wouldn’t. This was the case at Harry’s house. The slope just out his back door was extremely steep, and the cement patio pressed rite next to it.This would generally present a problem . We were able to complete this project by building a disappearing pondless waterfall.When running, the basin would hold about 6 inches of water, but when turned off either with the timer,or his hand held remote control,the basin would drain . Harry still has some landscape work to do , but it turned out pretty good.