Here is a good, short educational video about How-to use a pressure washer and it's additional benefit to remove weeds from cracks and walkways. No more getting on your knees with a knife or using harmful chemicals to kill them either. Click on the above image to view or use the link below.
This video is from Home Depot and has over 68,000 views. I don't promote the company or it's products, but I find this video very useful for any DIYer as it explains the different parts and usage of a pressure washer for the laymen.
If doing the pressure washing yourself is not your thing, give me a call. I can do it quickly and safely for your home and the environment. Read more.