[redstarwindowcleaners]

Need a backpack if anyone's knocking one out

[adixon]

Can make your own for £120 and better spec than all the suppliers
Back pack sprayer screwfix £20
Collapsing trolley screwfix £27
Small 4lpm 80psi pump from john hewitt £35 delivered
Speed controller on off switch and box to fit it all in £20
12v 7ah battery toolstation £15
1.5 metre of hose bit of wire couple of jubilee clips

Happy days