Virtually every single individual item that you might end up interacting with over the course of your life will have some kind of chemical name associated with it. A big part of the reason why that is the case has to do with the fact that all of these items are composed of chemical structures, and even the most basic things that you purchase or use on a day to day basis will have rather complex sounding chemical formulas that describe their internal molecular makeup.
You might think that water does not have any complicated chemical names, but suffice it to say that it does, specifically H2O. Similarly, some of the chemicals that you would use during pressure washing have chemical names that you would do well to learn a thing or two about in some way, shape or form. For example, there is a chemical that is popularly used during pressure cleaning and it is called Sodium Hypochlorite. The name might intimidate you, but just bear in mind that it is essentially referring to bleach that you use while cleaning out stubborn stains from the clothes that you wear at any given point in time.
In order to use sodium hypochlorite during a power cleaning job, you need to know how to mix it appropriately. The best thing to do here is to dilute it, since this would allow you to use it without worrying about any potential downsides. Try to make sodium hypochlorite ten percent of your overall solution. Going past this concentration runs the risk of you dissolving the paint that is on your walls, and it can also melt concrete sealant all in all.