Using a specific algal killer such as Rob Parker's Best Algae Remover and Patio Reviver, will not only kill the green algae that are present; it also provides residual protection to the paving for up to 12 months preventing further algal growth. The product works gradually.
There are a few ways you can remove algae from your green pavers, walls and fencing, some more effective than others. The simplest and most effective way is with HG algae and mould remover.
Bleach is a great way to clean pavers because it is a strong disinfectant. It will kill any germs or bacteria on the surface and remove any molds, plus it will also brighten them up. It is common to mix bleach with water; however, you can also add other ingredients to make it more effective.
Use White Vinegar to Remove Algae
White vinegar can quickly kill algae but is not harmful to birds, insects and the majority of plants. Use a mixture of one part water to one part white vinegar to spray down the area and kill the algae. Rinse the surface algae off the concrete with a water hose.
TIP 5: USE BLEACH OR VINEGAR
Oxidized bleach immediately starts to kill algae cells once it comes into contact with it. Bleach, however, should not be your first option, especially if the area you plan to rid of algae is near plants or grass.
Chlorine is still one of the most effective killers of algae so doing a super-chlorination of 10-20 ppm of chlorine can go a long way towards wiping out the algae. Liquid chlorine is an ideal shock for algae because it is fast acting and does not add cyanuric acid (CYA) or calcium to the water.
White vinegar is good for cleaning pavers, though it's also acidic enough to erode the stones' surface. Diluted vinegar can be used safely to clean paving stones, though it should be used sparingly and infrequently to protect your paving from damage.
Will Vinegar Damage Pavers? Yes, vinegar is NEVER safe to use on pavers. It can cause a lot of damage, and you may have to replace a lot of the pavers if you try this. I know that vinegar is often used for household cleaning projects, but when it comes to your patio, it's a big no!
Generally, interior pavers that have been grouted and sealed just need to be swept, mopped, and spot-cleaned as needed with a gentle, non-acidic multipurpose cleaning solution, such as Enviro Klean All Surface Cleaner or Light Duty Concrete Cleaner.
OxiClean is a powerful concrete cleaner that works well on various materials, including pavement and grout. This concentrated solution provides excellent cleaning without leaving residue.
Remove limescale buildup with a 50:50 ratio of water and white vinegar. Spray the solution on the surface of your pavers and let it sit for a good 30 minutes before scrubbing with a scrubber brush and rinsing the pavers off.
Vinegar or bleach are two easy to find cleaning solutions that kill moss so that you can wash it away. You will want to mix either bleach or vinegar with water in a 1 to 1 ratio. The 50/50 mixture of water and bleach/vinegar is gentle enough to clean brick and works well against moss.
In the same way that baking soda can be a spot treatment for black algae, household borax does the same for blue and green algae. Simply use the borax to scrub away algae that's sticking to your pool walls, then use the brush to dislodge it. Follow up by vacuuming up or scooping out the free-floating algae.
Only algaecides can "kill" algae in pool water. However, baking soda can help clear up algae. Use both so you can restore sparkly, clean water!
Algae and lichens prefer to grow in damp, humid areas. They need plenty of water to grow and often paved patios do not have sufficient drainage to stay dry. Algae also grows faster in shaded areas as water does not evaporate as quickly.
To clean paver slabs, you can use a detergent, such as Dawn, or a vinegar-water solution that is gentle enough to effectively clean without causing damage to your concrete pavers.
Baking soda has low-abrasive properties, making it an excellent cleaning material for stuck-on grime and tough stains. Additionally, baking soda is absorbent, allowing it to absorb oils from the surface of the pavers, especially freshly oil spill on concrete pavers.
Although bleach is great at the whitening effect, you can use peroxide to achieve this. Hydrogen peroxide is an oxygenated bleach. It is safe for plants, so when you rinse this solution, it won't harm anything. It works together with the dish soap and baking soda to remove dirt and whiten dirty concrete.
Use a specialist cleaner
Try a specialist cleaner like Wet & Forget, at Walmart, which you spray onto the surface of the paving and leave. It can also be used on steps, fountains, patio umbrellas and other smaller outdoor areas. It's bleach-free and non-acidic but will remove mold, moss and grime without any scrubbing.
Whether your patio is sealed concrete or cement, or even sealed concrete pavers, a bleach and water solution makes it easy to clean away built up soil, stains from leaves and pollen, mold, mildew and algae.
A mix of water and vinegar is a great combination to remove stubborn dirt and stains. If you want even better results, use this mix with a cleaner solution specific made for pavers or soap and water. Just remember to plan your cleaning on sunny days because if it rains, you might need to redo all the work.
Barley straw is a natural way to fight algae. On contact with water, the straw starts to break down, and as it does so it releases peroxides into the water which combat algae. Available in mini bales, or as a concentrated extract of barley straw liquid, it's a natural way of chemically fighting algae.
Apply a mustard algaecide following the label directions. Allow the water to circulate for 24 hours. Use a pool vacuum or backwash the pool again to remove the remaining dead algae. In persistent cases, brush the pool and apply algaecide once more after two to four days.
Mix two gallons of water, two cups of oxygen bleach, and one cup of borax. Stir the recipe until everything dissolves. Add ¼ cup of dish soap and stir. Apply the cleaning solution and scrub with a brush.