Hi Smudger, I hope you don't mind me asking for some advice, a few days ago I asked the guys on here how they
administered virosol at height above first floor windows onto FSG as a pretreatment before WFPoling it.
I'm sure I read on an earlier post that you use a Gardiners Backpack to do this, if this is so, could you advise me
on how yours is setup, what mix you use in the backpack and what brush or attachment to pole do you use,
pencil or fanjets or what ever you use, any advice I would be very grateful.
Best regards
Lal