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There is a simple way to prevent vortex from occurring. Assuming the drain in the tank is on the bottom of the take, install a a horizontal plate several inches above the drain fully covering the drain. It should be such that any water traveling to the drain must travel in a horizontal motion to get under the plate to reach the drain. A simple way to think ...


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The vortex forms due to a process called vortex stretching. Essentially as soon as the plug is pulled and the tank begins draining, a vortex forms at the center of the drain where the length of the vortex line is increased, which in turn increases the rotation rate and the familiar tornado shape forms. The only surefire way to ensure that the vortex does ...



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