Shaping a Stream

If a trickling little stream is more picturesque to you than ocean waves, then a winding stream can be a particularly appropriate addition to your pond, especially if, as I did with mine, you use it to connect from a smaller pond into a larger one.  You can, if you like, make the stream a predominant feature by rock surrounds, and elaborate planting, or by its length or placement.

Designing a Stream

In nature we usually see streams as a series of short. fairly flat sections separated by low falls or cascades.  However, in the home Koi pond or water garden, it is necessary to keep the stream as level as possible.  This will enable the stream to retain some water when the pump is turned off.  Plastic or fiberglass foundation materials, including mortar or concrete,  can have a shortened life span if conditions between wet and dry are alternated.  Also, you will achieve a more realistic look if the stream holds some water at all times.  In order to make the stream flow downhill, a drop of 1 to 2 inches per 10 feet is all that is required.  Changes in width can change the speed of the stream

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The Speed of the Stream

The speed of the stream can be changed depending on the effect you are looking to accomplish.  To increase the speed of the stream's current, try bringing its banks a little closer together.  If you would like a more leisurely look, move the banks further apart.  If you would like to grow shallow-water plants along the edges, then you will need to build a deep, wide, and slow-moving stream instead of a fast and narrow one.  To avoid having your stream becoming clogged with thick mats of algae, refrain from having a large area with slow-moving shallow water.

To make your stream look more realistic, add some twists and turns in the watercourse.  Along the banks, you can vary the size of the rocks.  If you would like to create rapids in your stream, place large rocks inside of the watercourse.  Should you desire a more rippling effect, simply use smaller stones and pebbles instead.