It has made a stunning difference It has made a stunning difference. I had jet washed wthout using anything and although cleaner it was still stone and grey - now its transformed - but it took alot more than i had anticipated and i still really need to spot other areas - but its a very good product- stone been down about 12 years - its brought colours back id forgotten were there- would recommend but it has not 100% eliminated the black spot ...just need to find some spare cash to get another 4 litres !!

Its a magic Its a magic. I have been using black spot remover since last 5 yrs. I treat the patio beginning of Spring to get rid of the stubborn mouldy green stains and the black spots formed during the winter months. No need for jet cleaning, just spray on the patio tiles, leaving it for 15 minutes and then rinse with the garden hose. Patio titles are back to their original colour. They look brand new.

Does what is says on the tin!!!!!! Usually when someone says "it's too good to be true" you hesitate BUT this product actually DOES what is says on the tin!!! So far, I've only done one patch but the results are amazing!!!!!! It has restored the Onyx chipping to its original soft colour, can't wait for weather to improve so I can finish the whole garden!!! Then I'll use the Patio Black Spot Preventer. I have some lovely before and after photos!¡!

Easy ordering Easy ordering, speedy delivery and it does what it says on the tin ! Very pleased with the result

Preseverer Arrived when promised, easy to apply on a yearly basis with an excellent result that lasts till the next annual application.