Sanding and chiselling will leave unsightly marks on your paving, bleaching can work well but you have to be careful not to kill your plants and dilute your bleach to the correct level, some people recommend using this method only in the winter months to avoid damage to plants but you still need to be really careful ...
Black Spot remover works very well on Porcelain, Limestone, Sandstone paving slabs and brick or masonry surfaces. A Power Washer or a garden hose with a high-pressure head. Use a watering can rose if you have one to spread the Black Spot Remover evenly. 1 litre of Black Spot Remover should cover 5m2 of patio.
First, you'll need to make sure that there's no run-off of the bleach onto any surrounding plant life. Plants that come into contact with bleach will die. Second, bleach isn't suitable for man-made concrete slabs – only natural paving stones. Bleach will fade artificial slabs over time.
Use bleach for heavy-stained slabs
Dilute half a bucket of bleach with equal parts water, applying evenly to your green-tinged patio. You should leave the solution to work for ten minutes before rinsing thoroughly with clean water, repeating the method for stubborn algae.
Use Bleach
But that's not all; chlorine bleach can also be used for cleaning the concrete driveway. Of course, you should dilute it with equal parts of water or a 1:1 ratio. With the mixture ready, spray it on the driveway, allowing it to sit for 10 minutes. Then, use a stiff brush before rinsing with clean water.
Bleach: This alkaline solution may be effective for other household uses, but it can discolor concrete pavers that have been colored or stained.
Sodium Hypochlorite Patio Cleaners are used for more stubborn stains as you need the EXTRA strength solution, which is 50% stronger than the heavy duty solution and may be diluted with up to 6 parts water and 1 part Sodium Hypochlorite 15%.
This is a common problem. It could either be mildew, or a reaction from tannin in the wood. Given that you have black residue on rocks, it may be mildew.
Vinegar or baking soda: These natural cleaners work well to clean cement patios with stubborn charcoal or rust spots. Mix equal parts vinegar and water, scrub the patio with the mixture, then give it a good rinse. If stains don't dissolve, try undiluted vinegar.
What are the black spots? The patio black spots that grow on your garden stonework are actually spots of black lichen. The spores from the black lichen start life as tiny dust-like spores growing on the underside of leaves on trees and plants.
As a general rule, the length of time that bleach is in your hair should not exceed 45 minutes. Any longer than this and your hair strands will look and feel fried! Make sure you follow the advice and instructions on the pack. After bleaching, your locks will feel slightly weaker and will likely need some 'TLC'.
You might need to reapply bleach to get the desired color sometimes. But, even then, it is recommended that you do not exceed the 30-minute mark. Bleach takes about 10-15 minutes to lighten fine hair, 30 minutes for dark or coarse hair, and 15-20 minutes for blonde hair.
Bleach should be washed out as soon as your desired level of lift is achieved, and should never be left in for longer than 45 minutes at the most to prevent damage to the hair, and should be checked frequently throughout the bleaching process.
Let bleach process between 20-45 minutes, depending on your hair color, desired results, and package directions. “I recommend reading the manufacturer directions on the back of the bottle to ensure you aren't over-processing,” Tang says. When the timer goes off, shampoo immediately and thoroughly.
Bleaching is an aggressive (and at the same time) delicate process for your hair. You can bleach your hair twice, but not twice in a row on the same day as it may cause hair breakage and hair fall. You may even lose hair in clumps, and each time you touch your hair.
Combine 1 teaspoon of hydrogen peroxide and 1 teaspoon of milk in a glass bowl. Dip cotton pad or Q-tip in the bowl and apply to dark spots. Leave on for 15 minutes. Rinse with lukewarm water and finish off with your favorite serum and moisturizer.
The culprit of the dark specks on your siding could be hiding in your mulch. Mulching around your plants helps soil hold onto moisture, keeps the weeds down, and looks tidy.
Patio Magic contains a fungicide that will kill off the following: Lichens (mostly black spots, sometimes white, on patios, concrete and blocks). Mould. Algae.
Remove those ugly green and black mold stains on your deck with Wet & Forget Xtreme Reach™ Hose End. Spray your wood or composite deck with Wet & Forget no-rinse cleaner. Allow the surface to dry (4-5 hours). Let Mother Nature do the rest of the work for you!
Use a mild grease-cutting detergent such as Dawn or Ajax dishwashing liquid mixed with water and a natural or synthetic bristle scrub brush to help brighten the patio surface. NOTE: Never use a wire brush as it can leave rust stains and scratch the concrete surface.
Vinegar and Baking Soda
Simply fill a spray bottle with equal parts water and vinegar (or water and baking soda), and add a little bit of liquid dish detergent. Spray the mixture on your concrete surface and let it sit for about 30 minutes. Then scrub and rinse your concrete.
'I recommend using a specially-formulated black spot remover, such as Rob Parker's Best Patio Cleaner,' says Ivo Iv, Founder, Decor Home Ideas. 'This product can be used on all types of stone surfaces and will not only kill the black spot permanently but also bleach the blackness out of the visible black spot. '