Ive got two Vyair pumps. One is a 10 litre the other 7 litre. Its funny tonight I was out there pouncing about, so I thought I'd check the pumps flow rate; the 7 litre pump was pushing out 6 litres a minute whilst the 10 litre was only pushing out 4 litres.
Maybe the 10 litre is on its way out. I wouldn't use anything less, now though than a 10 litre.
My brush of choice nowadays is an 18" gardiners, but with that 2' job the issue is getting enough water out of the head to rinse as quickly as the brush is capable of cleaning. Ive bought a shedload of different nozzles in the last two days, including pencils, 1mm, 2mm and 3mm, so will be checking it out with four nozzles, but I do think that fans are a necessity with a brush that wide.
It does have its limitations though, I wouldn't want to use it for daily, regular work. It'll be great on this school job we've got coming up in two weeks in London, theres literally acres of glass on it, so knocking that out with this thing will be a pleasure. My missus is coming up with the sole intention of her rinsing the glass behind me as I scrub.
There are 4 of these blocks, front and back
