Don't know if you've got sorted yet but I have a window cleaning warehouse backback (version2) that I bought Nov '10 only used it 3 times then lost the job I got it for. It is now just sitting in my garage gathering dust so it's in perfect condition
It's a great bit of kit 18litre capacity, with variable stream controller, powerful pump (can clean up to 60ft apparently) and battery charger. Also microbore tap attached. Cost me £129+vat. Yours for £100 inc postage
Nathan Harrison
07775838719