Spear & JacksonSpray and Leave Concentrated Mould, Algae and Lichen Remover - 5 Litre

Great product. Cleared green algae on flagstones within 24 hours. Having said that, there are similar products that do just the same thing, but maybe less or more expensive. I would recommend this product though.

Obviously I think that this product works as I have bought it more than once. Although 5 litres may not sound much it does require diluting 4:1 and actually makes 25 litres which will treat a substantial area. It's simple to use with a garden sprayer and simply needs to be sprayed over the area that you need to clean. It works progressively and gradually, but quite quickly, cleans the area and keeps working for months. There are other brands that do a similar thing but I suspect they all use the same chemical (which is child and pet friendly) but tend to cost more (a lot more in some cases). This product does all I ask at a reasonable price.

Works really well, not just on moss/algae but on weeds too. Will be buying again, worth the money

A great product. One must be patient after having treated the are to be cleared of mould etc. This product takes time to work and will eventually clean everything like new.

Give the fluid time to work for a few days before considering a second coat. It needs some time to make a really marked difference. Rapid effect on moss but far slower for lichen patches.

Works really well and easy to use. Good size and goes a long way.

This stuff actually works and is much better than scrubbing. Once dry I painted the fence and the result is perfect

Not sure, haven't used it yet. Unable to get my previous brand so went with this as it was competitively priced (ie cheap!) Will give it 5 stars because I otherwise makes it uncompetitve and also if it's pants I'll write another review