Place the pot on the stove and bring the water to a boil.
Clean rust off cement driveway.
Make sure the surface is clean apply the rust remover or acid following the instructions and safety precautions on the bottle let it sit for five to 10 minutes then scrub and rinse.
Using the scrub brush scrub the stain using a considerable amount of pressure.
Wear goggles and rubber gloves to protect your eyes and your hands.
Remove the surface dirt and debris from your driveway by sweeping the area with a stiff.
Move on to commercial cleaners if vinegar and lemon juice don t work.
Mix 1 2 cup of trisodium phosphate into 1 2 gallon of hot water until the trisodium phosphate has dissolved.
Use a brush that s appropriate for your concrete to avoid damaging it.
Allow the driveway cleaning solution to remain on for a few minutes.
Scrub as much as you can but if it s too deep there s not much you can do.
In hindsight a longer soaking would be a good idea.
Trisodium phosphate is an irritant to your skin.
Finally you can purchase a rust remover product.
By the way my rust stain issues are now over because i added a water softener which removes the iron from the well water.
Lemonade rust stain removal.
The grass did die a few inches away from the concrete but seems to be coming back two weeks later.
Fighting major rust stains.
How to remove rust from cement method 1 of 3.
Pour enough of the solution onto the rust.
How to remove the rust stains from a concrete driveway vinegar rust stain removal.
Be very careful as it tends to lighten the concrete leaving a rust free but noticeably lighter spot where you used it.
For particularly stubborn stains rinse the acid away with a pressure washer.
Follow the instructions on the package exactly.
Pour the vinegar over the stain let sit for 10 minutes then scrub with a stiff nylon brush.
Then carefully pour the mix onto the rust stain and gently scrub the surface of the concrete with a stiff bristle nylon brush.
Rinse the area off with cold water.
Rinse and repeat if the concrete.
For cleaning concrete pour the lemon juice or vinegar directly onto the rust stain and allow it to sit for ten minutes so the ingredients can fully penetrate the rust.