High strength Sodium Hypochlorite Patio cleaner 20L 20 Litres liquid chlorine for moss algae weeds bleach

(115 customer reviews)

£71.85 £53.89

  • High strength Sodium Hypochlorite: Formulated with powerful sodium hypochlorite for effective cleaning.
  • 20 Litres Liquid Chlorine: Large 20L capacity ensures ample supply for extensive patio cleaning projects.
  • Moss, Algae, Weeds Removal: Targets and eliminates moss, algae, and weeds for a pristine patio surface.
  • Bleach Cleaning Power: Harnesses the disinfecting properties of bleach for deep cleaning and sanitization.
  • Professional-Grade Formula: Trusted by professionals for its strength and efficiency in outdoor cleaning tasks.
  • Easy Application: Simple to use liquid form for hassle-free application on various outdoor surfaces.
  • Fast Action: Works quickly to break down and remove tough stains and organic growths.
  • Long-Lasting Results: Provides lasting protection against moss, algae, and weeds for a cleaner patio for longer periods.
  • Environmentally Safe: Ensures minimal impact on the environment while delivering powerful cleaning performance.
  • Multi-Surface Compatibility: Suitable for use on a wide range of outdoor surfaces, including patios, decks, and walkways.

In stock

Description

Introducing our High Strength Sodium Hypochlorite Patio Cleaner in a convenient 20L container, offering you 20 litres of powerful liquid chlorine to tackle moss, algae, weeds, and stains on your patio with ease. This premium patio cleaner is a potent bleach solution designed to provide effective cleaning and disinfection for outdoor surfaces.

With its high strength formula, this Sodium Hypochlorite Patio Cleaner is specially formulated to combat tough moss, algae, and weed infestations, ensuring a thorough clean and removal of unsightly growths. Say goodbye to stubborn stains and grime that can accumulate on your patio over time, as this product offers a powerful solution to restore the beauty of your outdoor space.

One of the standout features of this patio cleaner is its bleach component, which acts as a strong disinfectant, killing harmful bacteria and pathogens that may be present on your patio surface. This not only cleans the area but also helps maintain a hygienic environment for you and your family to enjoy.

Whether you are preparing your patio for a gathering, looking to revitalize the appearance of your outdoor space, or simply wanting to keep it clean and well-maintained, this Sodium Hypochlorite Patio Cleaner is a versatile solution that meets your needs. Its 20L capacity ensures you have an ample supply to cover large areas effectively.

Using this liquid chlorine patio cleaner is straightforward and efficient. Simply apply the solution to the affected areas, allow it to work its magic, and then rinse off to reveal a refreshed and rejuvenated surface. The potent formula works quickly to break down dirt, grime, and organic growths, saving you time and effort in the cleaning process.

Not only does this patio cleaner provide exceptional cleaning power, but it also offers long-lasting results that keep your outdoor surfaces looking pristine for an extended period. Its high strength formula means you can rely on it to tackle tough stains and growths, ensuring a deep clean that enhances the overall appearance of your patio.

Investing in our High Strength Sodium Hypochlorite Patio Cleaner 20L allows you to experience the benefits of professional-grade cleaning in the comfort of your own home. Whether you are a homeowner, a property manager, or a cleaning professional, this product is a valuable addition to your cleaning arsenal, delivering impressive results with each use.

Experience the convenience and effectiveness of our liquid chlorine patio cleaner and take the first step towards achieving a spotless and beautiful outdoor space. Say goodbye to moss, algae, weeds, and stains, and welcome a clean and inviting patio that you can be proud of.

Trust in the power of our Sodium Hypochlorite Patio Cleaner to transform your outdoor surfaces and elevate the overall look of your property. With its potent formula, generous 20L capacity, and proven results, this product is a reliable choice for all your patio cleaning needs.

Make the smart choice for your cleaning routine and choose our High Strength Sodium Hypochlorite Patio Cleaner 20L for unmatched performance and quality. Say hello to a cleaner, healthier, and more appealing outdoor space with the power of liquid chlorine at your fingertips.

Additional information

Weight 24 kg
EAN

5060228741869

Brand

High Quality

Manufacturer Code

AAAHYPO11-20

115 reviews for High strength Sodium Hypochlorite Patio cleaner 20L 20 Litres liquid chlorine for moss algae weeds bleach

  1. Independent Reviewer

    I love the way wet and forget has left my patio looking brand new although there was one area that was really black with mould so after two weeks I gave it another treatment. You have to remember not all the mould disappears at once but after two weeks people will begin to ask what you used on your patio. I will most certainly use wet and forget again.

  2. W mark

    Amazing product and easy to use

  3. Ricardo Javier Lara Contreraa

    A good product

  4. AJ Corbett (verified owner)

    spray and liquid

  5. Mama

    No more green in my garden Used with a …

  6. Bookchild

    Patio looks cleaner but still waiting for the black spots to go although they do seem to be fading.

  7. Nelly (verified owner)

    Idle Gardeners

  8. Carsten Hannauer

    Was easy to use and the patio is better but I think it will need a second go to make it clean

  9. Sally Carter (verified owner)

    Effective

  10. mirae

    I followed the instructions and it did what it said it would do i would recommend this product to anyone who has a patio it brought it up like new i have tried other products but nothing can compaire with Wet and Forget.

  11. Scoutsiraj (verified owner)

    Loved this product good value dont think Ill bother jet washing anymore brought patio up fab

  12. Andrew Carr (verified owner)

    This stuff is amazing. Did my greenalgae covered Indian stone paving patio this morning in just 10 minutes, and having fizzedbubbled away for a while and dried, its already looking like new. Couldnt recommend this any more, delivery was super fast too.Dont see the point in jetwashing as you only spray the dirt elsewhere. No backbreaking work and loads more time to sit and sip beerPS I used a ratio of 3 parts water to 1 part Patio Wizard so it was pretty potent, could probably dilute a bit more.

  13. Aida estevez (verified owner)

    My aunt lives near the sea and gets a lot of green slippery algae on the concrete patio at the back of her flat. It has been especially bad this year due to how wet and humid it has been. I used a heavy duty fungicidal apray atht attched to her hose to get rid of the algae but it has been creeping back. This spray is great to use for small areas, algae and moss in cracks or growing in between grooves in decking. It works overnight and washes away with water from a hose in the morning. Im a bit paranoid about chemicals, so I always use gloves and a mask when using weedkiller and fungicides. It also gets rid of green slimy grothe on walls and windowsills.

  14. Katarzyna Karwecka

    I used this product on my patio and a wall where there was a lot of moss and staining after a few days the patio looked new and a few weeks later the wall looked like it was when it was first built, if you are patient it will work, very pleased.

  15. Baron Vendredi

    Used this on indian stone patio about two years ago . it does take time to work, probably two or three months, Of course, it is best to blast off dirt with pressure washer first then apply it on a dull day to prevent drying off quickly. The hard stubborn black spots needed another application, but, it does workA friend of mine used it on a marble gravestone covered in algae , revisited six months later was astonished how it had cleaned it up

  16. Leota Tennant

    Very effective but dont expect a quick fix.

  17. Vinderlew

    So far so good…being patient isnt easy though

  18. Myrna N.

    Vary easy to use and has returned my paths and patios …

  19. fireball (verified owner)

    I mixed according to instructions in a watering can and applied to part of my path one day. By the morning I was astonished at the difference between the two areas all the green had disappeared where Deep Blue had been applied. Completed the job the next day and now all looks good without the need to scrub.

  20. Geddo (verified owner)

    It,s Magic

  21. Sajeev Sasidharan

    A brilliant and very effective patio cleaner. I have used this in the past and this is probably my 3rd purchase. Diluted 1 part cleaner to 4 parts water works magic. I used a sprayer which made it easy to cover a large area of patio paving. The next day even though it rained overnight, the moss began to look yellowish brown. In time maybe a few days or even a week it will simply hose off. Great stuff and great value for money. Thank you.

  22. Juliebear (verified owner)

    Saves a lot of time and mess I used to clean the patio with a jet washer this product savbes me time and mess

  23. Josephine Alcubilla (verified owner)

    Worth it

  24. Dipsruti

    Does what it says it does

  25. Mrs. Jean Sparkes

    No scrubbing needed just a watering can. Good product, best I have used on my drive and patio and with good results

  26. Enrique Gonzlez Galvn

    Simply, this stuff does exactly what the makers claim. It is brilliant and cuts out the need for destructive pressure washing. Suggest you start off with a 11 dilution for heavily stained pathspatios but then annual maintenance can be at 15 dilution.

  27. Mysterybuff

    Wet n forget

  28. Lesley Goodman (verified owner)

    The product diluted 5050 water removed excess dirt fungi from paving slabs easily using just a scrubbing brush…. the patio looked like newValue for money in comparison to patio cleaners, would definitely recommend for extremely dirty areas.N.B follow manufacturing directions for safety, the product does burn skin bleach clothing.

  29. Nicola Hawkins (verified owner)

    This is definitely a Wizard should be called Harrys Magic Potion

  30. April WildingGreene

    Check that you know what the product is for.

  31. david wei

    Outstanding

  32. Monica N (verified owner)

    Good fungicidal wash for small areas

  33. SUDS (verified owner)

    Fabulous product. Vary easy to use and has returned my paths and patios to grey from green.Cannot recommend highly enough.

  34. Sergio Blasco

    Wet and forget really worked for us. Weve used it on patios, wooden balcony, painted render, and flat roof over the last year at different times. Every time it has got rid of the green licheny colour in a couple of days leaving the surface looking great. We were thinking of getting the render repainted on the house, but there is now no need to, so value for money is great. It has also negated the need for pressure hosing last time. Worth getting a good sprayer though. A little spray has gone on to plants with no ill effect.

  35. Karl Budde (verified owner)

    Once a year must

  36. Leanne Mc Dowell (verified owner)

    Good product and patio looked so much better after it was applied

  37. ffoulksey

    I havd never seen my patio look so clean and gleaming. Thank you. Very easy to use just spray on and leave

  38. J. CARDINAL

    We were amazed at how quickly this worked. We had a sandstone patio laid in June 2018, and by January 2019 it was very green with a lot of algae, and with the beginnings of lichen here and there. We followed the directions on the tin, and left it to do its thing. One hour later yes, ONE hour later the patio looked like new again. And now, in September 2019 the patio is still looking like new. If the algae and lichen grows again over the winter, itll be another quick spray and done

  39. lesleyanne (verified owner)

    Does exactly what it says. Our patio is looking fantastic. We will purchase again next year

  40. cinzia pessot (verified owner)

    Arrived early

  41. Sarah Bloodworth (verified owner)

    Clean patio and headstones

  42. john touyet

    Used this product for several years on the patio always impressed how easy to use and it,s effectiveness. Have introduced it to family and friends, all are regular users.

  43. Vera Bemelmans (verified owner)

    Helped clean the patio but needed more than 1 application

  44. karina o (verified owner)

    I have used this product on our paving slabs and asphalt drive for a number of years. Follow the instructions and a pleasing result is obtained. The first time I used it I was a little sceptical, I need not have been. How it would cope with long neglected build up I do not know because I use it every autumn. The rear patio and stepping stones in the lawn see very little sun so by September there is substantial green build up. In the correct weather conditions the gunge is clear in about 4 days.

  45. Christine Birtwistle

    Fantastic. I painted it on my patio neat. Left for 1015. Washed off with a hose. Looks brand new. Effortless. Very easy.

  46. C. J. Fraser (verified owner)

    Product is exactly as described. Good value for money

  47. MUSIC69 (verified owner)

    Applied it to a patio area and a sandstone wall. took a little time to work but after a couple of weeks both were clear of moss. Its not cheap hence the four rather five stars.

  48. Alberto Saenz Martinez (verified owner)

    Easy to use

  49. R. MATTOS (verified owner)

    Works a treat killed my moss in under a week.

  50. Simone Colangelo

    We use this product every year. Great to use with a karcher patio jet wash cleaner.

  51. Cpt Cod (verified owner)

    Patio

  52. Helen Mccaw (verified owner)

    This is an excellent patio cleaner and cheaper than other brands

  53. Harry Hatchard

    Perfect for cleaning the patio

  54. 1st timer (verified owner)

    Good

  55. Sherri

    Absolutely fantastic.Ordered the 20 litre 2pack and was enough to clean two large patiopath areas. Diluted 4l of cleaner with 1l of cold water and used a handpumppressure sprayer.The paving slabs look like new.100 recommend.

  56. Sid Schneider (verified owner)

    This product is absolutely amazingHighley recommendWe had a big patio installed late last summer Indian sawn and honed worth thousands of pounds. A few weeks into winter and it was thick with algae and lichenWanting to maintain our patio through the winter we thought a quick jet wash would get rid of it. How wrong were we It was deeply, deeply stained so we hired a professional cleaner to come and tackle it.His industrial jet wash along with normal cleaners had little effect. He then tried careful combinations of bleach and as a last resort brick acid But nothingWe heard about Wet and Forget on a gardeners FB group and everyone raved about it. Simply make a solution and spray it on… no jet washing no scrubbing.Sounds too good to be true right Nope The pictures provided are before and after application of Wet and Forget. 24 hours difference. It looks even better now, nearly as good as when 1st installed.Worth every single penny. Could not recommend it enough

  57. hoda

    HAVE USED WETFORGET OVER THE LAST 3 YRS TO CLEAN MY PATIO BLOCK PAVED DRIVEWAY , WILL CONTINUE TO USE IT DOES EXCELLENT JOB .

  58. Kelly Ashworth (verified owner)

    I have used Deep Blue for about four consecutive years now. Prior to this I used my pressure washer but found that it was damaging the precast flagstones… I should have bought natural stone. Deep Blue, when applied on a dry spring or summer day, is very effective. One shouldnt expect a difference overnight but over the period of a month I notice a big improvement in appearance and this is maintained until the winter. I can only think that the chemicals are absorbed into the paving and continue to work at deterring algae etc. from growing.

  59. Dervid

    Came on time. Exactly what we needed for our patio

  60. Harald Thomas

    Brilliant

  61. Adnan Ali (verified owner)

    Certainly works magic

  62. Mum of One

    When correctly used it does exactly what it says, and clears algae perfectly from our paths and patios. A great solution.

  63. Tfk

    Brilliant stuff.

  64. andy stewart

    does what it says…wet and forget

  65. aindriu

    Patio Magic

  66. S H

    Does exactly what it says

  67. Vegan chef

    Highly effective patio and path cleaner

  68. Graham C (verified owner)

    Moss killer

  69. VandySJ (verified owner)

    Fantastic

  70. Agha Gul Zaman (verified owner)

    what other products are available .

  71. Alexandra Larsson

    I have to say I was skeptical about how well this product would work, but I was amazed It was so easy to apply and after a day, the patio looked brand new again. It got rid of all hints of green. Would definitely purchase again.

  72. Salji (verified owner)

    easy to apply, takes a little while weeks to see the effect of the product on algae but has made the area look better, works on patios and wood as well…all good

  73. Joan Hopkins

    Done the job beautifully. My patio looks like new

  74. Navvi

    Used for removing black spots from sandstone patioExcellent results

  75. Hayden Smith

    Our patio and drive were looking terrible after a very wet winter. Put this down and hey presto after a few house looked as good as new

  76. Dr. Mark W. Tebbit (verified owner)

    Spotless patio, happy customer.

  77. Gtester (verified owner)

    Deep Blue worked on my paving and saved me a lot of work.After just two days the green started to vanish from my slabs and although the black marks take longer Deep Blue keeps working months later.It appears to work quicker in direct sunlight but will work even in shaded areas but just take a few days longer to show a visible change.I would stress that It has only been necessary for me to use a light mist spray from a small hand spray to work properly, You only need to dampen down the slabs and dont have to soak them for this stuff to workI also found that it has a bonus which I hadnt heard about, It kills any slugs and snails which venture onto the treated slabs.However it hasnt hurt any plant which have been sprayed by accident.

  78. Samuel rossi

    Does the Job

  79. Henry Orozco

    Patio looks cleaner but still waiting for the black spots …

  80. Janice Edwards (verified owner)

    The relief from backache is wonderful.

  81. Kinga Jastrzebska (verified owner)

    Have used it for several years and its by far the best product on the market.Follow the instructions and you get brilliant long lasting results. No more jet wash damage to paving and patios.Did the entire roof of a bungalow and 6 months later it looks like a new roof.Doesnt work over night except on simple green algae, moss takes a little longer and black spot and lichens a few months sometimes , but apply it in the right conditions ie a dry but overcast day for the best result. The slower it dries on the surface its applied to the better it works.Once applied it is activated everytime it rains so the best time to apply it is in autumn so that the rain over winter and spring make it do its job.Follow the instructions not doing so is the only way it will fail.

  82. Y. Ruiz

    Patio stones

  83. Darion (verified owner)

    This is the only cleaner that I now use on my patio. Cheaper products are available but theyre nowhere near as effective. And very easy to use.

  84. Jeff Allen

    Best on the market

  85. Denise Wilson

    After researching many different products on the internet to clean my block paving drive I plumped for this one. Not the cheapest but far from the dearest so was taking a bit of a gamble after reading other peoples mainly positive reviews. All I can say is it did the job very but I had to do a lot of back breaking brushing. However the end result was just what I was hoping for and left me with block paving that looked like the day it was laid or possibly better and ready for the sealing solution that was the next back breaking job….. When I had finished using this patio cleaner on the block paving I had a small quantity left which I simply sprinkled on my wooden decking and what an amazing difference it made in less than 24 hours, all the nasty build up of green moss has disappeared. Not got round to doing the job properly on my decking and it will have to wait until next spring now although I have every confidence in this product doing a good job with my back breaking help…

  86. Glenys Hall

    This is an excellent patio cleaner and cheaper than other brands. Continues cleaning after application for several weeks and cleans patio slabs as described. I recommend this product.

  87. shaun stokes

    I can see why they call it Deep Blue, its just that. Takes away the green tinge from any outside surface and actually cleans it. Its amazing how it works. After just one day of spraying it on using my 15 Kingfisher 5L Pump Action Pressure Sprayer, it looked as if someone had repainted my white walls. No need to even wash the surfaces afterwards, its sort of self cleans. Incredible stuff

  88. Corrina Rowden

    Easy to dilute and spray with back pack sprayer need to get this separately for large patios. Very effective at suppressing moss and lichen staining.

  89. J. E. Murphy (verified owner)

    Im starting with one star and am hoping to revisit this review over time once results appear….if they appear. I applied the product exactly as instructed 51 mix on Indian sandstone on a dry evening via a pump sprayer. This was 2 days after jet washing, so its already clean but is covered in black spots. It remained dry for 4 days afterwards, then small amount of rain. Almost 2 weeks on, very little rain has fallen and the stone looks no different. So many reviews state the need to be patient with this, so I will. Im struggling to see how this is going to work and have no confidence in the product so far…..but…..if it does start to work Ill revisit this review and rating as Ive never wanted anything to work so badly Our patio looks ugly at the momentUPDATE 2.5 weeks on and a bit more rainfall and the stones look a tiny bit cleaner, and whilst many spots are still there, some look like they have faded a tiny bit. Not enough to up my rating yet Lets see what happens in the next few weeks.UPDATE Im starting to become a believer. Approximately 8 weeks on and the patio is much cleaner and is staying clean. The black dots are still present but we think they are fading very very slowly. Time will tell but Ive seen enough to believe it will come good. So much so Im going to use on a very dirty driveway Fingers crossed Im back to give this the full 5 stars once the black dots lichen has gone completely. Hopefully in a few months time.

  90. Jorge A. (verified owner)

    Dilute with 2 parts water and brush onto the patio slabs. Within 45 mins the lichen black stains had disappeared.

  91. Nina nee

    Fantastic Product.

  92. Karen Gornall (verified owner)

    makes short work of cleaning patio

  93. sara louise shaw

    No more green in my garden Used with a garden sprayer, did all fence panels, patio front, rear and drive way and still got enough left over to do my mums

  94. R.D.

    I have used this product before and it helps keep my patio clean and free from green stain, also does not kill grass near patio or drive

  95. Mary Coomber (verified owner)

    Does what it says on the label. My patio is still clean and mould free after winter.moshe elias

  96. Cubbie

    Recommended.

  97. Lisa F

    Results great. Price seems high for patio covered

  98. Kritikfuzzi

    Having refurbished our teak bench seat algae started to appear last autumn. I bought this product in the hope that it would remove the algae. I sprayed the bench and, as the name says, forgot about it. I have just checked the bench, which has been outside all winter, and am delighted to see that it is perfectly clean with no sign of algae. Will now try it on the patio. Very, very impressed with this product and feel that I will be using more of their products.

  99. Daniel Neudeck

    Amazingly effective

  100. M Devoy (verified owner)

    Cleans patios

  101. Sr.espinal

    Awesome suff. It took about 24 hours for the algae on my sleeper wall to completely disappear, on the shed it took about 2 days. Has also cleared up my patio beautifully. I recommend it.

  102. J A Wright

    What fantastic stuff this is.I used it on our rear patio and it worked in under a week.So happy with the results that I bought a second pack to treat the front drive

  103. J. Kemp

    This is a great product to clear moss and algae from patios, pathways,and walling just water it on and leave it supurb.

  104. J R

    This product really works I was very impressed with the outcome on my conservatory roof and patio

  105. Max Halford (verified owner)

    Patio moss was a nuisance, calling for hours of painstaking removal two or three times a year. One thorough spraying of Green Gone acted within a few days to reduce all the moss to dead, black remains that were easy to sweep away. Brushing over the joints with sharp sand to fill them and then spraying again with Green Gone a couple of months later has kept the moss away completely. Well worth buying.

  106. Andrew Higgins

    I used this Deep Blue last year to get rid of algae and weeds on my paving. It really does the job, within a few days everything had died and has only just returned 12 months later. Fabulous to get the job done and no more weeding for a year.Very quick delivery

  107. default (verified owner)

    Works like magic.

  108. Mr. Michael Metherell (verified owner)

    The wet weather had caused a real increase in moss and algae on our winding path which was now an eyesore after looking really good. We read the reviews on Deep Blue and gave it a go. Delighted with the result but would advise testing the results of various dilutions. We needed a much stronger solution than the recommended one. I honestly wondered if the path would ever again look nice, so we will use Deep Blue regularly now.

  109. Liam Mcmahon (verified owner)

    I have only just tried it out and it appears to be doing a good job on the patio. As it has only been on for 3 days and the patio is, or was black I can see that it has started work but I am not expecting it to show full results for about another fortnight. Sprayed it on my boat canvas covers today and am hoping for the same results as all the other boat owners on our forum have experienced.

  110. duane (verified owner)

    This is a first class product for removal of Mould. I have used it to treat stone walls, natural stone roof slates and stone patio areas around our home, with excellent results.It is FAST acting having noticible effects within the first 24 hours and very effective results. It is by far the best and MOST CONVENIENT product that I have tried and I have tried quite a few…Requiring no scrubbing, washing or flooding post treatment, makes this exceptionally easy and considerably safer to use than some alternatives. The maxim spray and walkaway sums it up.Great work Never thought I would get excited by a Mould removal product Must be getting on

  111. James Bateson (verified owner)

    Its magic

  112. Me, myself I (verified owner)

    Best Mould Treatment Product I have tried

  113. Brian Dean

    This isnt a patio cleaner as such. You just tip it on and it kills algae. Its not something you use with a jet wash.

  114. Michelle A (verified owner)

    I have used this product for a few years now on my patio .I have also used it on fencing where green mould has appeared.It is an excellent cleaner and does exactly what it says it does.Easy to use and in my case quick acting.

  115. anotherday46 (verified owner)

    Weve used Deep Blue Fluid around the house for a long time now and we find it particularly good on our patio as we have two dogs who use it as their toilet area. Once the patio has been washed down it always smells fresh and clean and it also keeps the drains smelling nice too. A couple of gripes though, firstly when this product arrived, because the packaging was not up to much and totally insufficient to send 5 litres of fluid which obviously weighed quite a lot, the container was rather bent so I think perhaps more padding around the item is required in future. Secondly, we feel that the larger Deep Blue Fluid containers need a spout, like petrol containers have, as its rather difficult to have any control over how much is being poured and it runs down the side of the container and makes everything else in the vicinity including your hands smell of the disinfectant, which in itself isnt a bad thing but Id rather smell of perfume than disinfectant all day and Deep Blue Fluid is strong smelling which cant be washed off very easily or masked by anything else. I wouldve given this item 5 stars had it not been the couple of gripes

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