1 Biologics are expensive. 2  A biologic drug may cost about $1,000 or more per month. 3  Before starting to take a biologic medication, make sure you can afford it either through insurance coverage or your own finances.
Fertilizer Stains on Concrete. Fertilizer rust stains on concrete comprise some the most powerful and embedded tough rust stains to eliminate. These stains can be removed with our professional concrete rust removal product, F9 BARC.[img src=http://www.front9restoration ....9 rust removal productâ F9 BARC â is the most effective concrete rust remover and will not harm plants and grass. Professional application by professional power washing companies is required for maximum results, due to the nature and depth of these types of stains.
Pressure washers. Using a medium-to heavy-duty pressure washer can remove or lighten oil stains on your concrete driveway if the spill is relatively new. First, apply a commercial-grade cleaner to the oil stain and scrub with a brush or broom.Then add detergent to your pressure washer and begin spraying.Move at an even pace and keep the nozzle at the same distance from the surface of the concrete at all times to ensure that no streaking occurs.irst, apply a commercial-grade cleaner to the oil stain and scrub with a brush or broom. Then add detergent to your pressure washer and begin spraying. Move at an even pace and keep the nozzle at the same distance from the surface of the concrete at all times to ensure that no streaking occurs.