On Sat, 26 Jan 2008 14:29:17 -0000, "Barb"
wrote:

Can anyone recommend something really good for cleaning flagstones?

I've tried the garden-centre algae killers, vinegar, strong detergent, and I
don't possess a power-washer and don't really want to buy one just for this.

You can hire them, or hire a man with one. The quickest and most
efficient, and only uses water.

Pam in Bristol