There are several individuals that are living on this planet at present that assume that their DIY mentality enables them to complete virtually any task under the sun in some way, shape or form, but that’s usually not the case. While you might be able to do certain things like set up a cabinet or build a cupboard at any given point in time, chances are that trying to implement the same DIY point of view into pressure washing would likely end up doing a lot more harm than good and it would probably outweigh any of the potential good that you might have been assuming it could do for you as well.
A big part of the reason why that is the case has to do with the fact that pressure washing can be a relatively dangerous task if you do not have the kind of skill that is required to do it in the best way possible. The people over at Castle Power Wash use very high grade protective gear because the water exits the hose at an immensely high speed, and if you were to accidentally aim this at someone you care about you might hurt them so badly that they would have to go to a hospital and see a doctor to get treatment for what you have done to them.
There is a time and place for taking control of whatever it is that you are attempting to involve yourself in. Trying to pressure wash anything at all on your own would be the gravest of errors, and it might just make it really hard for you to recover from the harm it would do.