Has anyone modified the windscreen washer system on a S1/S2 to produce a strong spray, like on newer cars. Even with a new pump and jets, the spraying power is pathetic at cold weather. Notice that the solution used in winter in scandinavia is also much heavier to pump/spray. The result is a spray that reaches only the lowest 15cm of the windscreen. At summer, with water there are no problems.

So, has anyone for instance tried to use the headlamp washer pump instead or done some other cunning tricks?