The amateurs who drained around our house couldn't find a solution to connect a narrow downpipe with a regular stormwater pipe (the nice orange kind), so now there's a gap of a couple of decimeters.
Does anyone have tips for a nice transition between a narrow to a larger pipe? Yes, I understand you might want some dimensions? My guess is I'm going from Ø70 to Ø120 - something like that...
One solution would be to use a leaf guard, of course, but is there any other alternative?