Lesser known tips/things to look out for

Hey guys , I recently just started a pressure washing business but am wanting to expand my knowledge, covering everything i can before i do my first job. Do you guys have any tips or things to look out that aren’t really talked about for example.

  • how to deal with oxidation
  • how to determine the plan of attack based of how new the concrete is
  • the effects of bleach on different materials

Iv seen posts briefly covering some of these topics that I wasn’t aware of previously before seeing them.

If anyone has any tips, would be much appreciated.