Patio Black Spot Remover 5 liters

Does what it says on the tin. Noticed a big difference within one hour of applying. We have a large light stone patio and it hasn't got rid of the black spot completely but bearing in mind it is many years worth which has never been treated before then there was a very marked difference. We think we will have to treat it again to eliminate it completely but apart from that would recommend this product. It is also cheaper than similar product you can buy elsewhere in garden centres.

I used this on a sandstone patio with heavy black spotting. After a 24-hour soak it had loosened the staining slightly but still took several seconds of direct spray with a focussed power-washer to lighten each individual spot. Possibly my stains were particularly intransigent and would have resisted any cleaner, but I wouldn't use this product again.

Sadly this is no different to the other supposed 'black spot remover' liquids I have tried - it doesn't work!! I was diligent in its application with a brush and leaving for 24 hours but to no avail! Maybe I have a particularly resilient strain of black spot, but none of the products work, not just the Easy product, and they are all too expensive for multiple coatings. Perhaps a manufacturer would like to offer their services in trying to remove my black spot to prove that their product works?

Worked eventually.First time, applied it, covered it, left it for 7 hours, jet washed it off. No good.Second time I left it for 20 hours. Jet washed it off and it worked an absolute treat. Black spots and a other dirt gone - indian stone like new.

Didn't work. Black spots were unaffected by this so called "black spot remover'.

Did not clear the marks as much as I thought it would - especially for the price.

cleaned but did not get the black spots off

Works brilliantly