Windscreen wiper question- sweeping water back onto the windscreen

Hi,

We've had our volt for a few years now, and we've noticed at consistently when we're using the windscreen wipers and there's plenty of rain being swept from the glass, both blades seem to pull the water back onto the windscreen after sweeping the water to the edge. It's often that after the blade moves back from the edge of the windscreen to return to the centre of the glass to sweep again, about 6 inches wide or more of water is pulled back towards the drivers field of view, and also the same on the passenger side.

It's rained so infrequently here over the last year that I'd forgotten about it for awhile, but my wife mentioned it to me again today, and we're wondering if it's an adjustment, or if they're all just like that.

Does anyone have any thoughts? I've had a look through the forum and I couldn't find any other posts raising the issue.

Thanks,

craby