Or.. a y-pipe in plumbing where two streams of water come together and there is a slight change of direction of the flow. That puts a slight outward or inward pressure on the Y connector itself and the flow itself …
Or.. a y-pipe in plumbing where two streams of water come together and there is a slight change of direction of the flow. That puts a slight outward or inward pressure on the Y connector itself and the flow itself …