Cleaning ingrained dirt from pavers - Help to clean red brick clay pavers

[geoffdance]

Hi tony,

yep 3000 pounds per square inch, aka 220 bar. A bit more than yer standard B&Q pressure washer. Uses about 15 litres of water per minute which also helps shift the dirt, but it is so much more efficient that you end up working for less time so using less water. I cleaned a 180 sq m block paving drivway in about 5 hours - the owner says it takes them 2 days with a domestic unit.

Geoff

[lutonlagerlout]

i think we hired one of these to clean a school all weather pitch,it nearly broke my hand when i tried the pressure
good for cleaning though
cheers LLL

[wallybotson]

if you had a reinforced concrete wall (I hope that is the right term), with a rounded top, how would you get 50 years of city grime off and not damage the line of the casting.
Would a flat rotary be too harsh - can you use water alone? what about sand blasting or is that not necessary. There is probably 200 metres to do and it forms a pier, so one half is, although above the ground not the sea, is about 30ft up.
What do you reckon?

Thanks