Wet & Forget Mould, Lichen & Algae Remover, Outdoor Patio Cleaner, Black Spot Remover, Bleach Free, 2L

I used this on an old patio with a lot of built-up algae and mould. I followed the instructions, sprayed it on, left it for a few days, and then gave it a hose down — no scrubbing required. The results were genuinely impressive. You could see a clear difference, and it’s still improving with time.Application was quick and hassle-free, and a little goes a long way. It’s a brilliant low-effort solution for patios, walls, or garden paths. Definitely something I’ll keep on hand for outdoor cleaning. Highly recommended.

Mixed sucess. Sprayed on pavers and indian sandstone. The pavers at the side of house that gets a little sun worked great, after just a few days. The pavers at the back in full shade no difference so far even after 2nd application. Indian sandstone- has worked but did have to wash down with soapy water and rinse as left stains. Works well on wood.

Perfect for fences, not strong enough to clean up my patio. Really easy to use, sprayed out well from the Spear and Jackson sprayer I bought with it. Cleared the green algae off the fence very quickly and effectively.

Brilliant stuff. I live next to a wood so my paths get covered with algae & all manner of crap that the wood deposits. I get slimy paths all year & had white & black algae spots everywhere, despite regular cleaning with a mix of bleach spraying & pressure wash.This year I sprayed wet & forget on all paths, driveway & rockery stones & half a roof of an extension for comparison, at the end of March. I could see a difference almost immediately - despite instructions saying it can take weeks- however this has only got better & better with time. I haven’t had to repeat anything as yet ( I usually have had to by this stage June). I can certainly see it lasting all summer. Will certainly be purchasing again.

Delivered to end of drive and left in full view of passers bye. Left in rain and package dissolved..House is 700myards from front of drive- driver is lazy.

I have used this stuff for a few years now and it has always impressed. I have an assortment of different types of flagstones, cement, limestone, sandstone and granite and it cleans all of them well. Does what it says on the tin, spray it on and forget about it. Some stuff will disappear more or less instantly, some takes a bit longer but I would say within a couple of weeks it will have done the job on all but the most stubborn bits. Depends how much it rains too, rain activates it and washes away the dirt it has cleaned so if it hasn’t rained much it will appear to have done less but don’t worry just leave it.I have used it for years now, when I first used it I was like well that was a waste of time expecting instant results like you get with a pressure washer, but don’t worry it’ll get there and lasts a hell of a lot longer than pressure washing which also damages slabs and pointing. I think on less porous stuff it takes longer, on my granite wall it takes a while but it still works really well and gets it gleaming, so much so I’m contemplating spraying the front wall of my house with it. It also works on green growth on slate roofs.I would generally say you need to reapply every year, I hadn’t done it for a couple of years until I did it a couple of weeks ago, it was certainly needing done in some places but they still cleaned up very well.In summary it’s not cheap but it really works and is dead easy to apply. When applying just make sure you don’t miss bits, there will be some bits that you spray and it soaks in really quickly, just give those bits another whiff with the sprayer until they stay wet.

Product great, but did not turn up on time.

This is brilliant. Absolutely no scrubbing! Just spray and leave. The decking cleaned perfectly, and improved even further over the following weeks.