Follow these steps to build a waterfall in your backyard:
● Select a location
● Get stone for your waterfall
● Design your stream and start digging
● Prepare the basin and pump, and line the basin
● Build a staircase
● Spread the liner in the streambed. Place waterfall stones
● Add some spill stones and gaps
● Add a layer of tiny boulders. Clean the rocks. Trim off the exposed part of the liner