Products 5L Green Gone Super Concentrate Algae Mould/ Lichen Killer

Used many times, patio very green this year due to continuous rain, but applied end march thinking would do early as might need second go later.Two days on and most green gone did a second application on slightly stubborn areas but all good.Works best the more sunlight areas get.

It's done a reasonable job of removing most of the green off of my white rendered wall. It's not amazing though.

It removed algae from canvas drapes on my garden pavilion, nothing else we tried removed it. It also removes algae from fencing——wonderful product.

This stuff is excellent. I used a pump sprayer to apply it to my fences, very easy, very strong even when diluted to the parts instructed on the container. Killed green algae within minutes (I did it on a sunny day and could literally see the algae disappearing before my eyes while I was taking a break), other moulds went within a few days, leaving my fences with just the wood! Bear in mind it will strip away the paint so you'll need to repaint your fences after using this.I'm going to buy more of this to apply to the patio/stone chippings as we head into winter to keep the green away.Only negative point - probably too expensive for the amount of uses you're able to get. I could dilute more to get more out of it but then it may not be as effective.

Three stars might be unfair here, as spring has only just really got underway and the product has not really had a fair chance to show its true colours. I have used the product on a couple of patios and the thicker moss has certainly been "hurt" but not killed. Having said that, the moss (or most of it) did come out fairly easily although I did have to resort to a brass tined brush made for the purpose. I used the product twice on the thicker moss so I expected it to die but by no means all of it did. For me the jury is still out. I need to use the product on my red tiled drive and then make a judgement. I will update this review and its star rating sometime over the late spring when I have more experience using it.

I was sceptical as to whether this would work on green algae mould on my fence but within a day it had gone from green to white then painted over it easily. I used a cheap handheld pressure sprayer to do it I mixed it 300mls to 2ltr of water

Hi, I purchased this product mainly for paving slabs in front and back gardens. The product is very easy to use just follow instructions on diluting the liquid within a watering can or spray dispenser and off you go. The back garden slabs seemed to clean up best on first application, gets the sun for more hours so possibly bleaches better. The partly shaded front garden took three applications but even then was easy to do. Results not as good as a power jet washer but the reason I wanted to use this means was because we have just been put on a water meter and have now ditched the pressure washer for good. Yes I will be using this product again and from the same supplier ,who was efficient and prompt with delivery and packaging.

Removed green algae from garden supporting wall and fencing easily without causing parent material colour fading. Diluted product and applied with sprayer.