A lot depends on how deep a fountain will mix water. They should really explain the depth of mixing is generally 1 ft below the intake. A pond's surface temperate and wind exposure most often determine the mixing layer in a pond. For small ponds in most areas of the US natural mixing is around 6 ft deep. The larger the pond generally the natural mixing layer is deeper proportionally. Good sized lakes can mix down to 20ft or more due to strong wind action and water temperature.

Last edited by Bill Cody; 10/06/17 08:10 PM.

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