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.
Is there anything strong and effective I can brush on and rinse off?

Thanks.

Barb
I use Jif (Cif) scrubbing brush and elbow grease.
--
Pete C
London UK