Description
Introducing the Commercial Strength Sodium Hypochlorite Patio Cleaner, a powerful 20-litre liquid chlorine solution designed to tackle moss, algae, weeds, and stains on your patio. This industrial-grade patio cleaner is your ultimate weapon against stubborn outdoor grime, delivering professional-level results with ease.
Formulated with high concentrations of sodium hypochlorite, this bleach-based solution is specifically crafted to target and eliminate moss, algae, weeds, and other organic growth that can mar the appearance of your patio surfaces. Say goodbye to unsightly stains and discoloration as this potent cleaner works its magic, restoring your outdoor spaces to their former glory.
With a generous 20-litre capacity, you can cover large areas efficiently, making this patio cleaner ideal for commercial use or for homeowners with expansive outdoor spaces. The concentrated formula ensures that a little goes a long way, providing cost-effective cleaning solutions for all your outdoor maintenance needs.
Not only does this liquid chlorine cleaner effectively remove moss, algae, and weeds, but it also acts as a powerful bleach to brighten and revitalize your patio surfaces. Watch as years of grime and weathering are erased, revealing the clean, vibrant look underneath. Transform your outdoor areas into inviting spaces for relaxation and entertainment with the help of this versatile cleaner.
One of the standout features of this patio cleaner is its commercial strength, giving you the confidence that even the toughest stains and growths will be no match for its potent formula. Whether you are dealing with deeply embedded moss or persistent algae, this solution is up to the task, saving you time and effort in your cleaning routines.
Designed for easy application, simply follow the instructions for dilution and application provided with the product. With proper use, you can achieve professional-grade results without the need for expensive professional cleaning services. Take control of your outdoor maintenance and enjoy a cleaner, more inviting patio area with this reliable and effective cleaner.
Invest in the Commercial Strength Sodium Hypochlorite Patio Cleaner today and experience the difference it can make in the appearance and maintenance of your outdoor spaces. Say goodbye to moss, algae, weeds, and stains, and hello to a beautifully clean and rejuvenated patio that you can be proud of. Order now and see why this powerful cleaner is a favorite among commercial and residential users alike.
gang –
Had green algae on the patio, simply mix this with water using a watering can, pour it on. I used a brush to scrub it in, then one additional layer poured on. Within days the algae had gone and the patio is looking 100 better. Very easy to use and would use again.
Dsentrieb –
Amazing Will definitely buy again
Avril mackarel (verified owner) –
Cleans patio stones great and also kills weeds at the same timeA welcome bonus
pia lindemann (verified owner) –
Highly Effective on Black Spots
Mrs. H. Pask –
Takes all the hard work out of cleaning your stone patio, no need for jet washing, love it
Mizzy –
My paved patio area was looking a bit tired and had lost its sparkle, however I applied a treatment of WF in the morning and by early evening the transformation was amazing…patio looking like new.
Osiris N. (verified owner) –
Expensive but effective.
Janet H. –
Great for green, so far no good for black
Fireman (verified owner) –
I use this every year to transform my patio from a slimy green mess to one that shows the true colour of the stones. It does not actually clean the dirt off the patio though you may still need a pressure washer if yours is really dirty. Nevertheless the green algae and moss is banished for months.
claudio panzone (verified owner) –
Good patio and concrete cleaner
IDRegale (verified owner) –
We have a patio at the back of tge house and every winter it gets black patches. Last year it took two days of scrubbing to get them off. This year, using this stuff meant it was done in half a day, so I am very pleased. I will use this in future,
JanOle Potinius (verified owner) –
Great my patio is no longer green
Gnther (verified owner) –
Works a treat.
shortie29 –
Moss Cleaner
Yonalyn Ortiz –
Having bought dozens of products over the years, Im always sceptical when I read such good reviews, thinking theyre undoubtedly overstated.This product comes under the does what it says on the tin title.Really easy to use, we saw results the next day and the heavy mould on my patio was completely clear within 7 daysDefinitely recommend.
Kemi (verified owner) –
New formulation same perfect result
Sandra Howitt (verified owner) –
If you have not used this product before it is difficult to review as it takes a long time to work. I used it on my patio a couple of years ago and after a year or so it had removed all the black and white marks that jet washing doesnt touch and they have not come back.
MilliVolt –
it differently works. Once i had a green patio now its back to its original colours.
GadgetDad –
Great product Brings patio up like new
Lab owner –
does what is says on the container
Mr R H Angus –
I have used this product before and have used it for garden paths, patio and garden furniture and it lasts for over a year.
TheShopaholic –
Does what is says
Afsaneh –
Does exactly what it says on the tin. Id almost given up on the idea of having a safe, slime free path but then I came across Deep Blue, 2 days after treating the area, all mould, algae and moss had gone. I made up the solution in a watering can, sprayed the path and left it. There was absolutely nothing to it no hosing, brushing or scrubbing. Fantastic
roger hamblett –
Greya
OAP65 (verified owner) –
Have been using this excellent product for several years on my patio and also on the brickwork in the flats that I live.Nothing better
miki dee –
Im delighted
sjva (verified owner) –
Makes light work if a miserable job Very satisfied.
ernesto i palacios –
Does exactly what it says.
tracey puddefoot –
… the spring time and another treatment just before the bad weather starts on my decking
K. Burton –
Used this for the fourth year running and as usual …
Littlespy (verified owner) –
Does what it says on the tin, great product that I have now been using for two years. I do Two applications per year on paths and patios and two applications a year on my mum and dads gravestone works wonders all clean with little effort. Highly recommended
Nexthazard –
Have been using this product for some years now. Every Spring I spray all my patio slabs and driveway with this product. It is effortless to use and very very effective keeps my patio and driveway like new without the need to scrub or power wash. When I look at other home Im just amazed that more people dont use it to keep their slabs and driveways in tip top order. Highly recommended.
S. Krber –
Does what it says on the tin.
Woman over 50 yrs –
Expensive, but has brightened the drive and patio, and has killed the moss and weeds.
Nandhini –
Does what it says on the tin. Excellent product.
Christine Whitehead –
Does the job. My second purchase. My patio looks great it is pink and clean. Will use to upkeep my patio snd hopefully not jet wash again
Miss Lucy E Conway –
I have been using this stuff every year for the last 5 years. Expensive but really effective. One application with a watering can on all paths and patios twice a year. Clears green stuff if you have it, and keeps it away if you dont
Linda SakyiwahAdutwum (verified owner) –
clean and quick
Ritsongha Hay (verified owner) –
Deep Blue is the best weedkiller I have ever used, and it is delivered with a couple of days of me ordering it. I am more than satisfied in every way, and will be ordering some more very shortly
mr mrs leworthy (verified owner) –
if your spraying a massive fenced area or a massive area in general that would take days to remove the green algae then this stuff does the job, if your spraying a small area like a small patio or fascia boards, dustbin etc, in a word, LAZY
Karen J. –
Arrived a few days earlier than expected. Very strong bleach that when handled with care was used to clean a very dirty patio. Will purchase again as required.
Non –
I mixed this in a watering can and poured it on to my patio in the spring time as it had gone green in places over the winter. Within a few hours the green staining was gone. Less messy than pressure washing and also it means you are not risking blasting the glaze off the slabs or the pointing out from between the gaps.
Anna Gulyas (verified owner) –
I purchased this to clean the patio which had gone very dirty over many years. The cleaner worked and the patio stayed cleaner for quite a time. However, with all of the damp weather we have been having in the UK it needs doing again.I would use again as this is quite a heavy pack to carry home.
Mrs. Louise Kitty Graham (verified owner) –
No green patio
Zanielle –
It really works
Chris wardell (verified owner) –
This is just an incredible Product I saw it demonstrated on QVC and it really is as good as they say. I used it on a cream stone patio and garden walk some 35 years old. It all looked a dull grey but the original cream colour started to show through within 24 hours. Each time it rains it is reactivated and the results continue to improve.I bought this for safety as I did fracture my spine slipping on the steep icy drive some years ago, and it is now completely clear of any remnants of lichen in the flags so no longer gets slippy when wet.I shall be using this every year now, as apparently it continues to work for about a year.Wet and Forget is one of my best ever discoveries
Beth Betteley (verified owner) –
Ive used this product before, and its just brilliant. It really is as easy as pouring the right amount into the garden sprayer so the dilute ratio is correct, and then spraying it aroundIt may look a bit pricey, but it saves you loads of time, as whats the alternative Spraying a load of Jays fluid around, scrubbing with a yard brush, waiting for a while, and then getting the pressure washer on it. Or even just pressure washing this is just far easier, and the results last much longerI bought the large size, as I have quite a big area to cover. 3 patios at the back of the house, a side passage from front to back, front area by the door and a path to the road. Also wanted to try it on the fence, and parts of the double drive. Did it all and still have some left The results on the patios paths, took probably 23 days . This time of year, they all get quite green with algae, and thats all gone now. The fence is quite unbelievable, its got rid of all the greenbrown algae but did take a bit longer to clear completely, maybe 10 days. Drive not sure about as its tarmac, and hasnt been dry for months due to the time of year, so Ill reserve judgement on that.Its very easy to apply using a standard garden sprayer, and I found I was actively looking for additional things to use it one when I had finished.Very happy to recommend.
John Daniels –
A great product. Used in accordance with the instructions and it was amazing how the moss and algae have gone from our driveway, pation and paths.
Paul Sloley (verified owner) –
Spotted this on QVC first, and as usual did my price comparisons. There wasnt much in the cost by the time you add carriage, but having sprayed my patio before the winter months, and seeing the results now no comparison to this time last year. I am a convert. Deep Blue has made a tremendous difference in keeping off the moss, and retaining the colour of the flags Amazing Will definitely buy again.
Sandra A. –
So I was recommended this product by a friend…..absolutely brilliant stuff Easy to use n got my patio lookin as good as new so it gets a giant thumbs up from me
aikipad –
Wow.
L.darwesh (verified owner) –
Worked well for job.
Viren T. –
The best product I have ever used
Fehmo (verified owner) –
Very pleased
Belen Garcia –
Only use on a dry day
neil a. –
Excellent for cleaning our drive and patio, also cleaned the roof of the conservatory, this cleaned Off all the mould and lichen
slim (verified owner) –
I have been using Deep Blue for 3 years now and have been fairly happy with it according to the price I paid which was under ten pounds per 5 litre container as sold here last year. I do not use it with a sprayer but prefer the watering can with a sprinkler attachment method and on that basis providing that you pour your diluted Deep Blue fluid when the weather is dry, it works for a few weeks or maybe a couple of months according to your strength of mixture. I had always previously used a 41 dilution ratio, which is quite strong and will kill moss growth. Obviously the stronger your mixture the more containerslitres that you will require. Even with that dilution ratio this product does not offer permanent algaemoss removal and because of that I feel that there is no way that this product is worth todays asking price of just under seventeen pounds being that we required 25 litres each and every year…. noting that the algae will always return on both driveway and patio etc., even on this heavy price. Our alternative, and the algae will still return, is to dilute good quality bleach into our watering can where we have found that it does the same job but a whole lot cheaper. The cost of the bleach, around two pound fiftyish for 2 litres. supermarket price effectively achieving huge saving with exactly the same result. Again I apply when dry and leave overnight. Pets, or anythinganybody else for that matter, should be discouraged from walking on the wet patioarea during the drying period. As with Deep Blue the bleach thingie is still not a permanent solution but at least affordable. All IMHO of coarse.
Tom (verified owner) –
Inexpensive compared to shops. Cleaned patio quite well
sbdags (verified owner) –
Easy to use but the result to date is mediocre
Very –
The patio wizard is better than magic
Lyndsay A. Muotoh (verified owner) –
Inexpensive compared to shops. Cleaned patio quite well
Rafael S. –
I put this stuff on, waited a week or two and was completely underwhelmed thought, well that was a waste of money. Fast forward three months and my drive and patio looks like fairies came and pressure washed it You have to be patient, but it really does work and its dead easy to use.
Mick Haydock (verified owner) –
I was a bit dubious about buying this product as it only had one review and I have tried all sorts of cleaning agents to remove linchen black spots from my patio as can be seen by the pictures it works brilliantly and in no time at all, the first picture is of when I used a jet washer to clean the patio this highlighted the black spots. the second pictures shows the patio after applying the product I used a ratio of one part solution and three parts water and simply used a soft broom to spread the solution and in a matter of minutes I could see the difference. This has got to be the best 25 spent in ages, I would recommend this product.
simon t bellis (verified owner) –
excellent product cleared the patio slabs and after 9 months all the black spots have also gone leaving a much brighter area
Samantha Trick –
It worked and cleaned the patio
Louise Tunstall (verified owner) –
Applied it with spray gun and within 48 hrs my patio was clear if all the green Algae .Its been 2 months since application and still clear .Patio looks great .Definitely recommend this product
Billy Enwright –
Be patient it really works
Murray Brown –
Green gone
Dwain K. Huff (verified owner) –
Used this for the fourth year running and as usual the patio has gone from green slime to pristine in 7 days.
Cass turner (verified owner) –
Having used this product before, but finding it harder and harder to locate at garden centres, I tried Deep Blue …. I was delighted to a find it, and b see it was the same price that Id paid over 2 years ago. I was slightly surprised to find that the formulation had changed from a blue liquid to a clear one, but can confirm that it works as perfectly as ever take one dry day, one watering can, and follow the instructions …. and two days later the oncegreen patio is spotless and so is the wooden fence Id never tried that before. Marvellous
Nicola DAmico (verified owner) –
I cant believe this product. I have a patio that most of it doesnt see the sun and some never. Every year for nine years we have had to clean it regularly to stop it going green. In March this year we put down Deep Blue and never saw the green again. Just to reinforce things, and to see us through the winter, when I assumed with the damp etc the green would reappear, we put some down in October. It is now mid January and not a sight of green. It remains the same. It is also exceptionally easy to put down. All you need is a watering can and a broom. I cant rate this product highly enough.
Julie Corsi –
Not used it yet because of the weather but if all the reviews are accurate Im hopeful that my patio and drive will soon look clean.
Mojan –
Good Purchase.
Andrew N (verified owner) –
The most difficult thing about this product is the patience you need whilst it gets to work
JBusel –
An excellent product that takes the hard work out of cleaning your patio or drive.
Leeseul –
Disappointing,
williams –
Patio cleaning
HORLICKS MAN (verified owner) –
My wooden garden furniture goes green over the winter and usually requires hours of scrubbing. I sprayed with Wet and Forget and the green disappeared and has so far not returned. It was also good for getting rid of the green algae on my Yorkstone patio but the black mould is still persisting. The vendors say it will disappear with time we shall see. Am about to try it out on my roof tiles which have a fair bit of moss on them. Very good customer relations helpful advice.
Danny Defreitas (verified owner) –
Best patio cleaner ever.
FriedEyeJohnson (verified owner) –
Wet Forget Moss Mould Lichen Algae Remover 5 Litre
Sunil De Silva –
Very disappointed with this produce, Ive used it before and the Indian Stone patio came up beautifully, not this time it didntIve still got chewing gum Algae as well as the black stuff neither have budged, I wouldnt mind but when I apply it if anything Im over generous when spraying and weve had plenty of rain to reactivate it, plus its not cheapI wont be buying it again but go back to my power washerIncidentally it took the algae etc off the north facing fencing almost along with my garden shades paint
Amina –
My patio was covered in dirt and green algae, shame I didnt take a comparison photo.I have used many cleaners in the past which havent done the job, will definitely use this product again.It was very easy to use, please remember to rinse really well if you have pets or any visiting wildlife. Brilliant product.
Jacques van der Westhuizen (verified owner) –
Been using Deep Blue for years. Spray it on and just watch the black mouldy form paving in my front garden return to the colour it was when new. No effort……..I recommend this to everyone.
Cranberry (verified owner) –
It is Magic
Mark Syder –
This is excellent stuff Its the second lot that Ive ordered and does exactly what it says in the product description. I used to power wash my drive and patio, but found that the results were very short lived. With Wet and Forget you just spray it on at the required dilution and wait. Within one week you will notice a difference and the improvement continues over time.
Robert Courtney –
I used this product to remove back pot from patio slabs, it didnt get rid of all, may need another dose
Igor Oda –
VFM
Margaret. –
Fantastic
Rosa c. –
Excellent Product, Does what it says, Pet Friendly Highly Recommend
pirschi (verified owner) –
For cleaning patio, meets expectations
Johnd (verified owner) –
Have used many patio cleaners over the last 60years and Deep Blue is by far the best.
nhoward –
Grot be gone
Jayne Stafford (verified owner) –
Works as described. I had a thick layer of moss on my roof which was beginning to lift the tiles. One week after spraying the moss started to brown and die. Brilliant Also used on patio which had some green algae. This started to disappear after only a couple of hours. Amazing
BabsiG. –
Tried other stuff, but this has been the best so far, easily dealt with moss and green growth between patio blocks, fences and walls. Seems to be lasting quite well.
Pau (verified owner) –
One application onto Indian stone patio…. and all green gone. Should be good for at least another 9 applications, so good deal.
Marion –
Very effective
A. Thirkettle –
Patio looks much cleaner, dark spots disappear with regular use eg once or twice a year
ButterflyChimes –
Deep Blue is amazing It will save you karchering . All you have to do is make sure your patio stone or brick is dry apply Deep Blue and make sure the next day is going to be dry too .Hey presto one clean moss free patio terrace . It truly works . If stone is vey mossy and dirty you make need 2 applications but believe me it saves you lots of work .
Chiara Manfrin –
Excellent product. It can take a while to work though. I used it on patio slabs and block paving but left out a small area to test whether it would work. It clearly works very well as the untouched area was black after 10 months. Still need to refresh it every year but much less hassle than power spraying.
hasan –
Great stuff brought my patio back to looking new.
Nantotink –
Amazing product with amazing result
Expert Shopper –
This is supereffective if you have black lichen spots on your patio. Make sure to wear the proper PPE though because its strong stuff. Highly recommended.
geoffrey gower (verified owner) –
Use on a dry but not sunny day.
fdctst –
Say goodbye to green patios.
Winclouduk (verified owner) –
I have used this both in the spring time and another treatment just before the bad weather starts on my decking, patio and brick paver driveway. If I am only going to apply once a year, I will use a stronger mix and it just keeps all the mould and green stuff away allowing us to use the patio and decking without having to clean it first when spring comes around the corner.
kath abbott –
I use it to clean the slabs on my patio
maureenhowell –
Very expensive item now for simply a temporary solution
Richard Goulding –
Overall, worked fine
V. LyonTallon –
Brilliant product and excellent discount for buying more than one.
comm88 (verified owner) –
I purchased Deep Blue from COSTCO for 18.99 for 5 litresHave used the product as per instructions. In hindsight it would have been better to pressure wash the areas of patio, paving and walls first and then once dried a thorough application of Deep Blue. Yes it does exactly what it says in the adverts but is not a cleaner. We noticed a reduction in moss and mould over a couple of days but according to other reviews it can take months before it takes full effect.We want a clean, mould and moss free area quickly and its the clean bit that we want immediately. To sum up were pleased with the ongoing improvement from applying Deep Blue but suggest you clean all areas prior to application.Also make sure youve got old clothes on as any splashes will leave marks on your clothes similar to burns cause by bleach.Oh and if youve got more money than sense buy it here rather than COSTCO where it sells for 18.00
jayne dowling –
Be aware
aukra –
Really impressed used on my Indian sandstone patio as some of the pointing had turned green and also need the seal the patio used a low pressure hand pump sprayed making it easy to apply. The result 24 hours later was that 90 of the alge had gone and the rest washed off using a garden hose . Also some on a bit of old concrete near a drain and most of that had gone very happy. Had previously used Deep Blue which was half as good in my opinion.
Alan Keys –
Read about product previously and raving reviews.Our patio is 4 years old and had already got speckled brown mossalgae marks.Had tried other products, but as I have pets, I wont use anything that isnt pet friendly.Keep animals off until dry, then they are fine.In a month….the patio looks like new, you will need a decent sprayer, which we have now upgraded, as it helps.Have already purchased another bottle.Very impressed
Ximena Talcofsky (verified owner) –
Used for removal of green algae from patio drive. After a day or so…..gone
Jabbacoozy –
Cleaning outside patio, steps and front driveway.Superb, but, wear protective gloves and old clothes. It stings and bleached.
Shampoo (verified owner) –
Easy to use. Does what it says. My path and patio look like new. Very pleased.
Alan Finney (verified owner) –
Bought for use on patio stones and concrete paths and reconstructed stone walls. I found it very easy to use but three weeks on the walls have not improved much at all but the concrete paths and patio stones do show a definite improvement. I bought enough to reapply twice so theres still hope
L. E. Burgess (verified owner) –
This works
PATRICIA PAGE (verified owner) –
Killed moss and green algae on path and patio. Easy to use and worked immediately. Only disadvantage was the smell.
isw –
Wet Forget Really Works