I got a lance from eBay, I'm getting a good thick covering,leaving to dwel then pressure washing off. It doesn't seem to be taking a lot off though, I've heard people use it as a quick easy wash with good results.
I'm not looking to use it as a lazy way of washing the car, after rinsing I spray more on and hand wash it with shampoo while its still on and rinse again. I just expected the pre rinse to take more off. Could it be down to my dilution? Am I not making it strong enough.