Rusty paving flags

[missprim]

While I was using Weed and Feed on my grass, I accidently spilt some on the paving flags as I was going along.Before I got chance to sweep it up, it started to rain, and rain,and rain.The next thing I know the flags are covered in rust from the Weed and Feed that I had spilt.
How do I get these rust marks off my flags? Please don't suggest power cleaning as there is no water outlet anywhere near my back garden.
Thanks in anticipation.

[tonyav]

brick acid will remove the rusty stains that you are talking about.you can get this from most builders merchants ( usually in 5 litre containers ) but make sure you read the instrutions and wear rubber gloves.

[missprim]

Thanks tonyav