AKICOLJ

(1) Our front door used to have a srip running along its base, on the exterior side, just above the bottom; to catch the rain and shed it outwards, so it didn't run down into the gap between the door and the frame. It has now disappeared, and I'd like to replace it. There are three small holes in the door, which it clips into.

Does anyone know where I can get one / what it's called?

(2) On the M42 south of Birmingham, there are signs saying, "Pollution controlled penstock." Does anyone know what these are?