Originally Posted by davyk31
Vario lance should be the one and using it at the highest setting will be fine unless you have bought a mega potent Karcher. Not sure what the high pressure lance looks like but would reckon its fine too, dirt buster will be too concentrated a blast. Anything that gives a "spray" of water onto the car will be fine.
Get yourself a proper snow foam lance, connect that first of all to the Karcher, cover with foam, dwell for 5 mins and then blast away, that will remove 90% of the dirt and the nasty stuff that will scratch your car while hand washing.
The high pressure lance has a machine gun barrel end! The dirt buster looks like it has cone shaped 'rambo' explosive tip!
Got the snow foam lance and ready to give it a blast this weekend.