Cut four 5 feet long pieces of copper piping with the pipe cutter.
Dry fit a rectangular copper pipe arrangement including three 90-degree angle fittings and a single T fitting at the bottom corner where you will attach the hose. On the other end of the T fitting attach a screw fitting which will fit the hose connection.
Clean the ends of the copper pipe with a wire brush and wipe them off with a damp cloth.
Apply flux to the ends where the fittings will be soldered. Use a paint brush for this application, the chemicals in the flux can cause damage to open wounds or the soft tissues of the eyes and mouth.
Slip a fitting on to the end of the pipe and heat it with an Oxy-acetylene torch. Let the solder cool and then move on to the next fitting. Do not use water to cool the pipe prematurely because it may cause cracking in the seal.
Drill 1/32-inch holes in the bottom side of the top copper pipe every 2 inches.
Attach the hose to the screw fitting and then secure the waterfall in place with metal U stakes.
Wipe down the entire copper fixture with a damp cloth to remove any flux residue. The residue can cause corrosion of the copper if left on the surface.
Turn on the water and adjust the pressure to create the drip rate you prefer.