Use a garden hose or a pressure washer.
Clean grass stains off concrete.
Get those unsightly grease oil and transmission fluid stains off your concrete driveway or garage floor.
Spray them with oven cleaner.
To make an easy cement floor cleaner apply a thick coating of the baking soda to the stained area of the concrete floor and let sit for approximately 30 minutes.
Wet the scrub brush with warm water and apply a few squirts of the soap to the bristles.
Scrub a mixture of dish soap and water on to the stain and rinse it off using high pressure from a garden hose with a nozzle.
8 8 the grass did die a few inches away from the concrete but seems to be coming back two weeks later.
Don t rub the surface it will drive the stain further into the concrete.
Combine the washing soda or detergent with water in the bucket.
For large spills apply spill absorbent to the area and let it sit for 24 hours.
Damp concrete will allow the cleaning agent to permeate better.
Scrub the stained area with a stiff scrub brush.
Flush the area with clear water to help remove cleaning solution residue and dislodged grass.
Using a solution of 1 gallon water 1 4 cup washing soda and 1 4 cup borax applied with a nylon bristle brush scrub grass stained area with moderate pressure.
Pour some of the sudsy water on top of the stained area.
Pour some of the soapy water directly onto the grass stained area of the concrete.
Steps to remove the stains.
Let it sit on the wet stain for about 10 minutes or so then scrub in a circular motion.
Use the soapy brush to scrub the baking soda into the stain until the stain is gone.
I was afraid that all that acid would kill the grass growing against the concrete so i gave it a soaking for about an hour with a little sprinkler to dilute all that acid runoff.
Scrub smaller areas with a scrub brush.
Mix 1 4 cup of laundry detergent into a bucket filled with a gallon of water.
Use a nylon brush to scrub it away.
Begin by sweeping away any loose grass or dirt.
It this doesn t work repeat using oxiclean instead of dish soap.
Often you can remove a brand new stain with only household cleaner and water.
Wet the stained concrete with plain water.
Rinse the brush regularly and refresh the cleaning solution as necessary.
For larger areas it will be helpful to utilize a sturdy broom.