If you need follow up scrubbing combine one teaspoon baking soda with two cups of water.
What to use to remove green mold from concrete.
One product that s labeled for use on concrete as well as numerous other materials is wet forget moss mold mildew algae stain remover 24 38 for a half gallon at home depot.
Add the bleach to the water first then the detergent.
You can use a mold killing detergent diluted bleach or a commercial cleaner made specifically for killing mold.
Even though this solution is mild make certain to wear safety goggles rubber gloves and have plenty of ventilation.
Green mold or mildew started growing on practically every surface from concrete to stone to benches and trees.
Add full strength white distilled vinegar to a spray bottle and spray it on the mold.
Indoors use a power sprayer and a wet vacuum at the same time.
I watched a few of my neighbors use a solution of diluted bleach which is effective.
Step 2 put on rubber gloves.
Pour white vinegar directly on the surface and scrub it with a scrub brush.
I needed to learn how to clean mold or mildew from concrete and stone.
Rinse the surface algae off the cement or concrete with a water hose.
The best solution is to scrub and clean the affected areas with a mold killing detergent or a simple solution of household bleach and water.
Don t mix anything other than water with bleach as certain cleaning agents can produce highly toxic fumes when mixed with bleach.
Scrub the concrete thoroughly including the areas surrounding the green mold.
Use a pressure sprayer and pure water to remove mold from concrete indoors and out.
Set the power sprayer on the most effective nozzle setting to blow the mold off the patio.
Be aware that a too concentrated stream can leave a mark on your patio.
Let it sit for at least an hour before wiping away mold.
Scrub the green mold off the concrete using a brush broom saturated in the mixture.
Pour it into a spray bottle shake and spray it onto the mold.
Be sure to scrub aggressively to get down into the pores of the concrete.
Combining the two creates a lethal gas.
Never mix bleach with ammonia.
Pour the solution into a spray bottle or keep in a bucket and use a sponge to apply.
For a diluted bleach solution mix three parts water with one part bleach in a bucket.