You also need a crew, because dredging is a two-person operation: one at the helm, the other on the rode. And the person handling the anchor had better be fast. "You need the ability to pay out and haul in quickly to adjust for changing depth," says Bushy.
Once you have the anchor on the bottom, try to turn your boat. You can tell it's working if you have quick rudder-response at the helm. That means the boat is reacting to the pivot. Don't be timid at the controls. "The more power you put on," says Bushy, "the more response you'll get and the better your maneuver will be."
At the helm, turn your wheel in the direction you want to go and power up. Your bow should remain in the same spot, while your stern should come around behind you. Swing your stern to line up with your slip, then have your crew haul the anchor while you ease back into it. Or you can execute a tight turn in a narrow channel in dicey conditions.
Again, it's not a method you'll need to use every day. But you'll be glad you know how to dredge the anchor when caught in one of those once-in-a-hundred situations-times when having pinpoint turning control is paramount. Plus, when people at the dock ask you what you just did, you can tell them a Poor Man's Tugboat and sound like a real pro.