I am fairly new to all this, so please be kind. I will do my best to explain the problem.
A neighbor who knows less about this than me had a new sump pump installed. The installer simply poked a hole in the wall from his basement and pushed out a black flex hose outside extending only a foot or so from the house. The problem is, it pumps water which is pooling in his yard causing a trail of soggy mud which spills into my yard causing a swamp. A friend visiting pointed out to me, that this guy's sump pump hose was lying right next to the rain downspout which goes right into the ground. He suggested that this neighbor could have his sump pump hose tied into what appears to be an underground drainage for the downspouts. I had mentioned the problem in a very nice way to this neighbor, but they are clueless about how to fix it.
Ok, how can this be done? Does this require digging down to the underground drainage to connect the sump pump hose, or can it be connected above ground? What tools would be required to do this and is it simple to do?
I'm looking for a workable solution to this, even web sites which explain it with photos if possible, so I can be ready to share this with this neighbor to be as helpful as possible. I'm very concerned they might do something incorrect to make the problem worse in order just to do something. Thanks!