So what do you think of this idea. I would like to dig a long trench in my yard, to resemble a wandering stream. I would like to set it up like a pond, except this trench would be on a decline, allowing for running water with an underground pump to circulate and push the water, giving a nice flow, like a small stream. The purpose of this is so I can have a big brown in my back yard. Is this nuts? Has anyone ever heard of such a thing? Possible? (of course will cost $$$$$$$)