Homemade driveway cleaning solution?
by
Toolman
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I'm guessing you need a degreaser but without specifics, I think this article will give you some good general advice:
https://www.hunker.com/12266072/homemade-concrete-cleaner-degreaser
If you need something to remove rust stains, you’ll need a rust cleaner. It may take two applications. Muruatic acid solution works, but it requires knowledge of how to work with acids solutions & PPE.
Here are some tips on how to naturally clean a concrete surface: https://www.diynetwork.com/how-to/maintenance-and-repair/cleaning/how-to-clean-a-cement-patio