Trevor, yes I know this, thanks anyway. I did a test today so it's all fine.
John, TBH I'm not looking for a mega expensive pole as it won't be used day in day out, I don't want a crap one though but not an all singing all dancing one.
Smudger, i'm going to look into that, thanks. What's a mixer?
Darren - Thanks mate, i've only ever done low level cladding so have no idea how to set up water fed pole for chemical injection, i've only ever done it through a hose lock attachment to a domestic tap