– Sodium Hypochlorite 5 Litre – High Strength (14-15%) Driveway & Patio Cleaner – Concrete, Brick, Slab, UPVC, Roof & Fence Cleaner – Black Spot, Oil Stain & Odour Remover – Bleaching Agent

This product is absolutely brilliant! It has transformed my black Indian Sandstone slabs back to a lovely milky white colour and all the horrible black spots have all gone. It was so easy to use too. I diluted 2:1 and it worked a treat. I tried many other much more expensive products which were a complete waste of money! With very little effort this has transformed my slabs.

Excellent quality sodium hypochlorite I use to clean my driveway and patio . At a good price ! Excellent seller ! To recommed ! 5 stars !

Works reasonably well but works better with extra amount of product per dilution of water, does not remove black spot. Sweep pathway/driveway well before use.

This is amazing stuff. Killed off all the moss on my tarmac paths. I mixed it 50/50 and used a sprayer to apply. It also did a fantastic job cleaning the patio flags too. I've tried many other products but not comes close to this

After trying all the usual patio cleaners from the likes of B&Q and similar with little success, I came across this stuff. I didn’t hold much hope as nothing had worked to remove the black spots and stains hence why I didn’t take a before photo. This is strong stuff, I applied by decanting a small amount into a bowl and brushing on, left it for an hour then jet washed off. I think the results speak for themselves, my patio looks brand new again. Really easy to use, works incredibly well - 100 recommend.

Removed all dirt and algae that had accumulated on the patio and children's toys over the winter with no effort. Rinse patio and make sure all loose debris removed, apply the solution (I used it neat) and gently spread product using a brush. Leave for 30 mins, then rinse. Patio will be as good as when it was first laid. This is a strong alkaline so it will remove the colour from clothes so be careful not to splash on your clothes if you're bothered about them being ruined.

You can use this if it’s raining, it as to be dry for a few days. It hasn’t so not used it yet. I bought it to clean my Indian stone pre sealing, it’s supposed to be the best hence why I bought it. I do wish Amazon would wait a period of time and allow the items to be used before hounding people for a review 😩😩

Good