When your not used to it the crap goes everywhere but once you get the hang of it, you can push the muck towards the down pipe,no matter how good you are? You will get some over spray, takes me around 10 minutes to clean up and that's even if I have had to scoop weeds out.
The lance isn't everyone's favorite toy but its a tool that keeps you safe and enables you to do an excellent job and a complete internal and external job in half the time than ladder work, my own personal record is 6x3 bedroom houses in one day and that was before I got used to the lance, I was shattered the next day though, just because I wasn't used to holding the lance correctly.
If anyone does buy a lance I strongly recommend you make or buy a gutter scoop for those Jobs with gutters full of weeds, the lance will blast it out eventually but its so much quicker to scoop it out.
Jeff. What sort of pressure washer do you on it, by that i mean did you look for a specific psi or lpm flow rate
Nice to chat to you this morning