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Fountain rule

  The J.W fountain rule states that the height of water emanating from a fountain / water feature should be no more than 50% of the diameter of the pool in which it sits.

This is because water will fall as far as it is high. 

For example if you have a pool that is 4 M* across if you have a jet that is 4M* high in this pool that means water can fall 2 m outside of the pool. Obviously over time this will empty the pool. this applies to ANY pool.

There are certain "Exceptions" such as if you have a large surface, such as a rock or wall where the water runs down its surface, or  wind controls to reduce jet height, auto fill to compensate for water loss. 

When designing a fountain this rule must be taken into consideration

A) Where water Can fall

B) Actual edge of pool

C) Pool jet

 

The picture above clearly shows the water is splashing outside of the pool

* your choice, be it metric or imperial unit of measurement

If you have a fountain / water gardening website please feel free to copy  this page, but it must be done so in its entirety (that is the sections within the border)

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