I'm supplying Rog with water for a £1.00 a day, which I hope and think is fair.
Rog is goingto have a tough day today, and he's going to think he's wasted his money, he's going to be fed up with the hose snagging on everything, fed up with taking longer than before, fed up with getting wet, fed up with worrying about the fact he just can't get it right because of spotting and runs when the windows have dried out....And whats this about it being less hard work than trad?? at the end of the day he's going to ache like hell...
Everyone thinks it is sooooo easy this water on a stick lark, and of course, to a degree it certainly is...but you have to get through the learning curve, and it is a steep one.
I think that the WFP newbie needs to double clean houses first off.
Go around the house thoroughly washing everything, then once you've finished, go back to the first window and start again, but this time clean only the glass, and don't press too hard on the glass either.
With the ten inch brush, the 2 needle jets are fine for rinsing, he has his water jetting a good 12 feet or more, but you don't want to rinse from that distance of course

Hold the brush close to the glass, the water will spead nicely and won't splash, and you should be able to control that spread, push it just up to the top edges of the glass.
with practice and experience you will learn that you don't always have to rinse off the glass at all...I certainly don't, or if I do, it is only a quick, cursery rinse...
Don't forget, all the time you are washing the glass, you are also continuously rinsing the whole time.
I can't say that I had any aches and pains when I started WFP, but for those that do, well, they will soon fade as you become accustomed to the work.
Ian