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Old 03/21/2005, 10:22 PM
Anthony Calfo Anthony Calfo is offline
Parapterois heterura
 
Join Date: Nov 2001
Location: Pennsylvania
Posts: 5,141
if the return water is a narrow nozzle, it will not move the surface adequately in a shear wave/wall.

That's the reason for the sealed plate under the surface of the water... to splash and divert the incurrent stream into a laminar plane of water. A spray bar could be a workable compromise here... although I've never liked the (poor) serviceability of spray bars.
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