What would you do with this? The valley doesn't flow into the end (there is no stop end so I think this might have been the intention) the gutter drains towards the camera, I was just going to put a stop end on and remove the downpipe, and just let the valley drain onto the roof on the right. Which it does anyway. The downpipe just allows the gutter to drain away from the camera and overwhelm the roof on the right (which is a big room and goes to a gutter over our front door, where we get floods). At the other end of the gutter is shown here is a downpipe.