Sodium Hypochlorite Pool & Patio Cleaner (14-15%)

Used it on our block paving drive in a sprayer. Seems to have killed the moss .. dried it out .. and brought the colour of the bricks back to the original. I imagine you have to be careful not to get it on your clothes though.

Brilliant product didn't realise that I had multi coloured flags underneath all the dirt and grime

Product does not work if used as indicated. The video shows them using the product neat but container says dilute 10.1 which does absolutely nothing. Therefore if you use it neat it only covers a 10th of the area they claimed. Basically it's a con