I am still waiting to catch an example though. Tank lorries are quite common here for potable water. You can see them quite often on the road, lorries with a white tank on the back, showing one horizontal blue stripe. And an explanation of what they carry.

Now the English language seems to be a slight problem for some of the guys marking the tankers. So therefore I already saw the following writings on them:

- DRINKING WATER (the most understandable one)
- DRINKING WATAR
- WATER FOR DRINKING
- WATER FOR DRINK
- DRINK WATER
- DRING WATER
- DRINKIG WATER

I think one day I will be lucky to catch one by picture. And then I will add it here. [edit: I added it today, 24/02/09]