Anyone else get this? We live in a hard water area. If I don't use the car for a few days, and the weather's warm, I sometimes get one or some of the washer jets clogged up with chalk. A devil to clear out, too. I remember a similar problem on a Polo my wife owned a few years ago, so perhaps a VAG problem. Yes I do use screenwash additive but just a supermarket one, nothing fancy. Anyone else had this and know how to avoid it?