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Driveway Washer attachment - BobbyG
uk.aldi.com/special_buys/productnl_1458.html

Anyone got one of these? Are they any good for cleaning monobloc, especially where I wash the car and the blocks have became discoloured with brake dust etc .
Driveway Washer attachment - L'escargot
I don't know what "monobloc" is but I personally wouldn't clean blocks or slabs with a pressure washer if the water could get between and underneath. I've seen it done on a slabbed drive and the foundations of the drive were so disturbed that the slabs had to be re-laid.
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L\'escargot.
Driveway Washer attachment - Old Navy
I bought one of these last summer when ALDI last had them. I found it very effective on monoblock, slabs and decking. Move it very slowly over the surface being cleaned or it will leave spiral clean marks where the nozzles rotate.
Driveway Washer attachment - BazzaBear {P}
I have the Karscher version, and it's very good. Quicker and a LOT cleaner than doing it with the normal spray lance.
I used it on paving slabs.
Driveway Washer attachment - BobbyG
Thanks for the input guys - did it blast all the sand up from between the bricks / slabs?
Driveway Washer attachment - BazzaBear {P}
Not for me - but that's because there's none there anyway, I must get around to fixing that.
If it's loose sand you've got between blocks, then I'd be very surprised if it's all still there when you've finished.