Blast it Clean
When the detergent has done its job, switch to a general high pressure spray pattern and rinse away the soapy grime.
Be sure that you move in smooth, consistent motions so you don't leave streaks. Be careful not to miss any spots, or they'll be noticeable. Clean away the soap and grime in even, sweeping motions and take your time. This is not the kind of project you want to rush.
For areas that are heavily soiled, you may need to make a few extra sweeping motions. It can help to also slow down over those areas and let the pressure washer work its magic.
A turbo nozzle can decrease your cleaning time by 40% and is helpful for blasting away and removing stubborn stains. It provides added water pressure to break up greases and oil stains that aren't coming loose any other way. These can also be great for removing mold, mildew, and algae growth.
For your safety, it's important to make sure the turbo nozzle is always in motion while you work, and to never aim the stream anywhere near yourself or others. Avoid spraying any glass garden ornaments or decorative edging, as it could break them apart and cause injury or property damage.
When time is of the essence and a turbo nozzle still isn't fast enough, a surface cleaner is the answer. They get the job done fast. They're not going to always be the solution to tough, settled in stains, but they'll cover more surface area in less time.
As you push the surface cleaner across the ground, two spinning jets of water within the cleaner-housing blast away stains. The end result is a much more consistent and even clean. A surface cleaner will give you an overall good clean that can be completed more quickly.