Cleaning patio up

[chriselevate]

Hi,

We have a courtyard garden that has been pathed with tiled rather badly.

A couple of questions:
1. How can I clean the slabs so they all look neat, tidy and the same colour? Currently they are marked and look dirty.
2. How can I relay loose ones? 3:1 sharp sand and cement and the back butter them to lay them down?
3. When do you grout in between the tiles with?

Here it is:

I've also managed to find the barcode on one of the slabs and with a bit of searching the internet I've have found that it's these:
http://www.diy.com/nav/garden/fenci...-L-450-x-W-450-x-D-32mm-9273429?skuId=9283129

Hope that helps,

Thanks for your time and help

 

[r896neo]

have a look on paving expert.com all of the answers you need are there

 

[LeadFarmer]

Clean them with a pressure washer.