Patio Cleaning

[davetuc]

Is there a better way of cleaning a patio than just a high pressure jet? Can you get any liquids/powders that help clean it better? They must be out there! Any ideas?

[woodchopper]

I always use a power wash - saves a lot of effort - apart from power washing you could always try a scrubbing brush and a suitable detergent.
If ti is moss/algae you need rid of a solution of Armillatox available at most garden centres will rid you of it. But is better if you power wash first.

[kaztuz]

Brick acid is good for cleaning blocks and slabs, etc. You have to be very careful as it is extremely strong, but if you go to your local builders merchants I am sure they will have some and give you the right advice on how to use it.