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Then press 1 to add the second correlation result. A second cross will appear and a line will
pass through both. A result will be given on the leak position and velocity, but we recommend
the user add a third result for a more confident result.
Then press 1 to add the third correlation result. A third cross will appear and a best fit line will
pass through or near the three crosses. The result of the leak position and velocity will be
displayed under the graph.
