Wet & Forget Moss Mould Lichen & Algae Remover - 5L

$99.00 was Regular price was Sale price


Wet & Forget Moss Mould Lichen & Algae Remover

Wet & Forget saves you $$$$$$$$$       WHY?   
Because you don't need to buy different products for different jobs!
Choose ONE PRODUCT to clean ALL exterior surfaces. 
Absolutely SAFE to use on any exterior surface.  Wet & Forget cleans without having to waterblast or scrub the surface!
  • Wet & Forget Moss, Mould, Lichen, Black Fungi & Algae Remover has a unique combination of biodegradable selective surfactants for moss removal, mould removal and lichen removal on absolutely ANY exterior surface. 
  • Wet & Forget Moss, Mould, Lichen, Black Fungi & Algae Remover is the safest, most effective way of removing these exterior growths without scouring the surface it has infested.
  • When diluted with water and applied, it immediately attacks those unsightly growths such as moss, mould lichen or green algae. Each time it rains, this safe, cleansing combination reactivates to help flush away and remove the moss,  mouldt, lichen and algae.
  • Wet & Forget Moss, Mould, Lichen, Black Fungi & Algae Remover is 
    non caustic, non acidic and contains absolutely NO bleach.  It has an unlimited shelf life.
  • 5L Concentrate makes up 30L product.

IMPORTANT: You can't use regular Wet & Forget 5L (blue) with the Rapid Application hose fitting. It will NOT work as dilution rates are very different!!

Check out more 'cleaning tips' when choosing between Wet & Forget or Rapid Application
How to Remove Moss, Mould, Black Fungi, Algae or Lichen from Decks
How to Remove Moss, Mould, Black Fungi, Algae or Lichen from Roofs, Driveways, Pavers

Sprayer - 7L Marolex

  • All seals & O rings are made of Viton© (not rubber) which are chemically resistant to a wide range of aggressive chemicals
  • The 7L sprayer is supplied with a stainless steel 1.1m telescopic lance
  • Highly efficient high pressure pump for excellent spraying pressure
  • Spare parts readily available for repairs
  • Reinforced PVC delivery hose for long life with pressure relief safety valve
  • Graduated markings for filling
    Today this sprayer comes with 2 FREE flat fan nozzles for high speed application and a wider spray pattern (Value of gift is $15)
  • Optional Extra - The 3m extension telescopic lance is a real beaut for those harder to reach jobs!  Easy interchange at the handle.
  • Optional Extra - The spray guard stops any overspray in specialised areas

    7L Pump Garden Sprayer For Total Quality & Convenience   16L Pump Garden Sprayer For Those Larger Jobs

    20L Electric Sprayer For Faster Applications  2L Pump Sprayer For Smaller Jobs

Sprayer - 12L Marolex Back Pack (Pump)

  • All seals & O rings are made of Viton© (not rubber) which are chemically resistant to a wide range of aggressive chemicals
  • The 12L sprayer is supplied with a stainless steel 1.1m telescopic lance
  • Highly efficient high pressure pump for excellent spraying pressure
  • Spare parts readily available for repairs
  • Reinforced PVC delivery hose for long life with pressure relief safety valve
  • Graduated markings for filling
    Today this sprayer comes with 2 FREE flat fan nozzles for high speed application and a wider spray pattern (Value of gift is $15)
  • Optional Extra - The 3m extension telescopic lance is a real beaut for those harder to reach jobs!  Easy interchange at the handle.
  • Optional Extra - The spray guard stops any overspray in specialised areas

Rapid Application Moss Mould Lichen & Algae Remover

Rapid Application for moss removal, mould removal, algae removal & lichen removal is a sister product to the original blue Wet and Forget Moss, Mould, Lichen & Algae Remover.  They have exactly the same active ingredient (unique to us) and will cover a similar area. It is only the faster application, using the revolutionary Reach Nozzle that is so different!

  • Rapid Application is non caustic and non acidic and contains NO bleach which gives it an endless shelf life.
  • Rapid Application is safe to use on ANY exterior surface.  ONE product to clean ALL exterior surfaces!
  • Rapid Application is your concentrate and garden sprayer all in one.
    That means NO mixing!  NO Measuring!  NO mess!
  • The most outstanding feature of Rapid Application is its Reach Nozzle with its unparalleled reach of 8m or 2 storeys without using a ladder!  
    How amazing is that?   You don't need a ladder to remove moss, to remove the lichen or black fungi from outdoor surfaces!
  • For large concrete driveways, paths and more importantly, your roof - the revolutionary Reach Nozzle gives you an incredibly fast application - more than fifty times that of a garden sprayer.     
IMPORTANT: You can't use regular Wet & Forget 5L (blue) with the Rapid Application hose fitting. It will NOT work as dilution rates are very different!!

How to Remove Moss, Mould, Black Fungi, Algae or Lichen from Decks
How to Remove Moss, Mould, Black Fungi, Algae or Lichen from Roofs, Driveways, Pavers
 
How to Clean Your Roof Without Standing on Your Roof 

Double Bubble House Wash

  • Double Bubble House Wash makes house washing so easy.  Biological growth & airborne contaminants break down paint prematurely - which means you may have to repaint years earlier than you'd like.
  • Double Bubble House Wash uses our revolutionary Reach Nozzle to spray up to 8m or 2 storeys. Use this in conjunction with our 2 storey, 4.6m extendable brush to keep your paint or house exterior, in tip top condition.
  • Double Bubble House Wash assists you to easily dissolve dirt and grime as well as the build-up of airborne contaminants that accumulates on your paintwork. This is different from Wet & Forget or Rapid Application which target moss, mould and lichen on your paintwork.
  • Use Double Bubble House Wash once a year as part of your annual maintenance - it could double the life of your paint! So a couple of hours once a year washing your house with Double Bubble from Wet & Forget is time and money wisely spent.

Window Witch Exterior Glass Cleaner

  • Window Witch exterior Glass Cleaner is the best window cleaner ever. Streak free! No need to squeegee ever again with this 'Invisible Liquid Squeegee'
  • Window Witch by Wet and Forget is your concentrate and garden sprayer all in one to make cleaning windows even easier.
  • Window Witch exterior glass cleaner is a combination of smart surfactants that dissolve grime right off your dirty windows.
  • Window Witch's ingredients have a unique formula containing citrate water softeners and high performance additives to sheet water from the window, eliminating water spotting.  
    NOTE: It will not remove hard water spotting (undissolved minerals).
  • Window Witch makes window cleaning so easy as it uses our specialised Reach Nozzle to give you an 8 metre reach.  That's 2 storeys high!  That means NO ladders needed.
  • Click our Reach Nozzle onto your hose. Off you go!    

FAQs and Guides

Any exterior surface including:

  • Asphalt (Blacktop)
  • Astroturf
  • Bowling greens
  • Bricks & paving
  • Butinol Canvas tents
  • Caravan awnings
  • Concrete Cow sheds
  • Driveways
  • Fibreglass boats
  • Fibreglass hulls/topsides
  • Fibrolite cladding
  • Flexipave
  • Glass/Plastic houses
  • Glass houses
  • Golf greens
  • Hinuera and Oamaru Stone
  • Hockey pitches
  • Inflatable dinghies
  • Limestone
  • Marble
  • Outdoor furniture/pots
  • Paintwork
  • Paths
  • Patios
  • Patio furniture
  • Plastic houses
  • Pool surrounds
  • Roofs - Decramastic, Clay Tile, Concrete Tile, Super 6, Fibrolite, Colour Steel, Zincalume (iron roof)
  • Sandstone
  • Shade sails
  • Tennis courts
  • Teak decks
  • Textured finishes
  • Tiles
  • Timber decks
  • Tombstones
  • Umbrellas(outdoor)
  • Vinyl cladding
  • Weatherboards
  • Yacht dodgers/sails
              Removing Lichen from any Exterior SurfaceRemoving Lichen With Wet and Forget Lichen Remover
  1. Visually, section your area off into manageable parts.
  2. Spot spray the lichen within each section.
  3. Leave for 15-20 mins (while it is still damp) and then respray the lichen and the entire area of that particular section to ensure the plant absorbs the Wet & Forget/Rapid Application thoroughly. 
  4. The first application is to dissolve the waxy surface.
    The 2nd spray will then penetrate into the roots.
  5. This will ensure much better results for you. Remember that it will still take time to decompose and break away.

Will Wet and Forget affect my pets?

Not under normal circumstances but normal safety precautions prevail. If they accidentally walk or sit in the product - wash their feet and bottoms with fresh water as a precaution.
Pet Precautions

If I am on tank water, can I use Wet and Forget on my roof?

Sure can. But you must disconnect the water supply to your tank for 3-4 weeks or have at least 36ml of rain to remove the concentrate. Wet and Forget has been used for over 35 years to treat biological growth on roofs.


Can I change the specified ratios given in the instructions for Wet & Forget?

Yes. If the contamination is extreme, increase the strength for a quicker reaction. However, if you have cleaned the surface previously with Wet & Forget and you want to give it just a maintenance spray, you can decrease the strength if the contamination is light. The cleaning process will still be just as effective.


Do I have to use Wet & Forget all at once?

No, but good planning is essential. Work to a pattern so you know where you have started and stopped. The product is fine if left in the spray container as it does not deteriorate when it has been diluted. Plus it will not damage your garden sprayer as the product is not corrosive.


How long will Wet & Forget last in the container?

Wet & Forget has unlimited shelf life. Always keep the cap done up tightly and the container out of reach of children.


How long does it take Wet & Forget to work?

It is totally dependent on the intensity of the contamination. If it is really light you will see results within days. Otherwise it may take approximately 2-3 months to see improvements. Your concrete may turn an orangy brown when the Wet & Forget is applied. This is normal and shows you have had a good reaction. The discoloration will dissipate over a short period of time and is not permanent. The good news is that when you use it again the following season, the clean up will occur within weeks. In the very worst case scenario where contamination is extreme, it may take 6-12months.


What is the dilution rate and coverage area of Wet & Forget?

Dilute Wet & Forget 1 part to 5 parts water. Every 5L pack yields 30L of product to spray. With this, you will get coverage of between 100-300m2 depending on the porosity of the surface. ie painted surfaces will use less product but porous surfaces readily absorb the product and therefore coverage could be in the range of 100-150m2


When is the best time to apply Wet & Forget?

On a cool, dry windless day and when no rain is expected for 4-6 hours. Often the evening is best when evaporation of the product is minimal. This will ensure that the surface to be treated stays wet with Wet & Forget for an extended period.


Will Wet & Forget damage my plants?

Not unless you are directly spraying it onto the plants. If you accidentally do this, then rinse the plants down with water from the hose. Or better still, protect them with paper or plastic to avoid overspray.


Will Wet & Forget remove the mould off my timber decks?

Most definitely! But if your deck is older and has never been cleaned, it may be noticeably blackened with the contamination. In this case, it would be advantageous to wait a month after the application of Wet and Forget and give the area a light brush with a broom or scrubbing brush with warm water to remove it. The good news is that you should only have to do this once and then the maintenance becomes so easy.  Also check out our other amazing product, Hit The Deck,  for a more instant result (although it does involve more elbow grease!)


Will Wet & Forget get moss out of lawns?

Sure will! Firstly lightly water the lawn but not enough to saturate the moss. Do this late in the day when the sun is low so that evaporation is kept to a minimum. Dilute the 5L Wet & Forget 7 parts water to 1 part Wet & Forget and spot spray the moss. You may have to give it a couple of goes until you have it under control. At worst you may get slight burning on the grass but it will recover very quickly. Rake the dead moss out. then sprinkle lime over the area as this is usually a sign that your pH of the soil is not quite right.


How much Wet & Forget will I need to clean my roof?

The average 3 bedroom tile roof is approx 150m2 but because of the undulations of the tile profile the actual area is a lot bigger. Therefore an average tile/concrete roof would require 2 x 5 litre packs, depending on how porous the surface is and how much biological growth is present. For an average 3 bedroom tile roof with lichen you would require 3 x 5 litre packs depending on the total area covered with lichen.
For Lichen removal:
For best results mix the Wet & Forget and spot spray the lichen, leave for 10-15 minutes and then respray the lichen and the entire roof to ensure the plant absorbs the Wet & Forget thoroughly. The first application is to dissolve the waxy surface. The 2nd spray will then penetrate the lichen.
For green moss and black mould:
For green moss and black mould one application is normally sufficient. 
  1. Mix the product 1 part Wet and Forget to 5 parts of water - in a garden sprayer. (eg 1L Wet & Forget to 5L water)
  2. Choose a cool dry day to apply it.
  3. Saturate the dry surface with the product.
  4. NO rain for the first 5 hours
  5. Then, just watch it come cleaner - bit by bit as Mother Nature takes over. The weathering process gently takes the decomposing material away bit by bit without scouring the surface it has infested.
  6. Only one application!

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