Hi Richard
We have a couple of machines that can do that. One is a petrol engined back mounted vacuum with 35ltr capacity and 3, 4 or 5" vac hose and the other larger unit which does have a greater capacity (120 / 240 ltr) but is not quite so manoureable. They are currently being added to our website but are featured in our latest printed catalogue if you'd like more details (please give a call if you'd like a copy). They can be used for all sorts of outside litter and both cost £799 plus vat.
Regards
Mike Boxall
