If it is just dirt build up use a concrete cleaner and a long handled scrub brush.
If its got mold on it, add vinegar or bleach.
Power wash
Pressure washer!
Thank you we did this but still have grease like stains that won't come out.
Believe if or not brake cleaner spray in a can will take it off. Hope this helps you, it did for us.
Thank you I will try it
Poor some gasoline on it and let it penetrate the concrete. Then pour oil-dry or cat litter on that, let it set for 10 minutes and sweep it up.
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My kitchen cabinets are embarrassingly greasy. Please share your degreasing tips with me so I don't have to cringe every time I glance at my cabinets.
If it is just dirt build up use a concrete cleaner and a long handled scrub brush.
Power wash
Pressure washer!
Thank you we did this but still have grease like stains that won't come out.
Thank you I will try it
Poor some gasoline on it and let it penetrate the concrete. Then pour oil-dry or cat litter on that, let it set for 10 minutes and sweep it up.