Wet & Forget Mould, Lichen & Algae Remover, Outdoor Patio Cleaner, Black Spot Remover, Bleach Free, 5LCompact by Design (Certified by Amazon)

Has moss cleared of rear extension roof and sprayed this wonder formula! 6 months later the roof look so much brighter and cleaner. Used it in garden slabs and some look nearly new, some still have marks but they will need a second treatment as they were considerably worse. Easy to mix up and simply spray. Didn’t cause any damage to plants even when I accidentally sprayed some. This stuff is a miracle liquid, jet washed drive and sprayed this to remove black spots! Gone! Use as per instructions, I spray the garden slabs every so often with the hose and reactivate the chemicals. Works a treat! Very highly recommended!

Used on our largish block paving driveway which was absolutely plastered with heavily entrenched lichen. Dead easy. Followed the instructions. Didn’t use a more concentrated solution, or anything else, just did what it said. And then . . . nothing. No noticeable improvement for weeks. For so long, in fact, that I stopped checking.Until post winter, about 9 months later I guess, when there were no cars on the driveway I suddenly noticed that it had all gone. Completely. I’m astonished enough to actually leave a review.I’ve done the pressure spray approach before. It’s painfully slow and messy, especially if you do it properly and resand the gaps and seal the blocks. My pressure hose deals with dirt, but struggled with the lichen. So, in short, this is vastly easier and vastly faster and vastly more effective. Just vastly slower. So it’s a once a year thing - do it once, takes 20mins and never ever needs thinking about again.

Brilliant for removing mould / green algae from outdoor wood work, fencing, paths etc. Just spray or paint it on and the next day the natural appearance is restored. Easy to use and has not damaged my plants.

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.

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.

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.

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.

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.