Determine where you want to build your fountain. The fountain will consist of a pond and a rock formation. The fountain can be created anywhere, but often look nice in corners or in front of walls, surrounded by vegetation. You will need a nearby electrical outlet for the pond pump.
Dig a hole for your pond. The pond can be any size or shape you can desire, but should be about 1½- to 2-feet deep.
Tamp the ground in the pond hole and the ground surrounding the pond where you will be placing the rocks. This ensures that the ground is solid and will not settle, which can cause the rocks to shift.
Lay the vinyl pond liner in the pond hole. Smooth the liner flat in the bottom of the hole, up the sides of the hole, and flat on the ground outside of the hole. Place a few rocks in the hole at the edges to prevent the liner from shifting.
Place the pond pump in the pond hole and the water tubing to the point where you want the water to flow over the rocks.
Determine how you want to get the pond pump electrical cord to the outlet. A good method is to hide the cord through the rock formation and then bury the cord as far as possible to hide it.
Begin stacking rocks to form the area where the water will cascade back into the pond. You can stack the rocks in any way you like, and as high as you like. Adjust the water tubing as you go so it flows back out into the pond through the rocks. Be careful not to pinch off the tubing with the rocks.
Cut the pond liner so that a few inches of liner remains on the ground at the top of the pond.
Place flat rocks around the edge of the pond to conceal the top of the pond liner. Overlap the edge of the pond about 1 inch to hide the edge.
Fill the pond with water and plug in the pond pump. Adjust the water tube, if necessary, to achieve your desired look.