How can I make a trough in a rock floor?

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I have a very old basement with a rock floor and my sump pump is in the east end but the water comes in at the stairs that are in the west end of the basement. What is the best way to cut a trough in the floor to make the water run smoothly and quickly to the sump pump without have it pool up all over the whole entire floor? Not sure whether to jack hammer a trough or someone told me to use a cement cutter??? Is there any suggestions?

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