Shane as you can see as with most topics on here its only a matter off time before the roaring and chest beating starts.
Fact is you will be every bit as quick doing 4 or 5 terraced fronts with a trolley as messing about with hoses on a public
road.
At the end of the day why risk it, different if there was no other way.
no he wont sean!he ll defo be slower with a backpack/trolley esp if their filthy!he ll spend half his time filling the ruddy thing up! 
i know.been there.done that.if its a side street he ll be fine with his hose over the road(unless its a900!)theres always one! 
Dazmond I know your credibility has taking a nosedive since you started harping on about Vision but this takes you to
a new low.
I do about 12 terrace backs using my trolley as its the only way they can be done and yes on the first clean they did take
a bit longer about one to two hours over the 12, but it wasn't because I was constantly filling barrels it was because I was
cleaning the horrendous filthy frames with a bucket of soapy water and a cloth, for the uppers I used a cloth on attached to
a pole, so no ladder work.
Now I actually think I'm slightly quicker with the trolley as I try to do them with as little water as possible so tend to scrub and rinse faster.
But at the end of the day even if it does take a bit longer then tell the customers this and charge a bit extra to cover the time.