If someone asked me what is Pressure Washing Institute, I would tell them that it is an Internet Bulletin Board where contractors from around the world come and chat with others, learn from each other, help each other out, teach and learn how to do things, answer questions when people have problems, etc..
The Pressure Washing Institute has been around for a number of years and has hundreds of thousands of posts about topics such as washing houses, fleets, buildings, concrete, heavy equipment, dumpsters, etc...
There are forums such as equipment help, marketing, business, chemistry, accounting, computer technology, and more.
There are forums for specialized areas such as cleaning condominiums, parking garages, kitchen exhaust, air conditioner coils, wood, roofs, etc...
There is great advice here on many topics, just use the search button and type in what you are looking for. There is a good chance that whatever you are looking for probably has been discussed before or many times over because contractors are constantly learning better, more efficient ways to do things and they share their information with others.
Before I went into business, I was searching all over the internet and found some internet bulletin boards and read for about 3 months to see what is out there and what I could learn before I purchased my trailer rig. It was a great investment in my time to read a lot because it really shortened the learning curve, saved me a lot of money, saved a lot of aggravation and helped me get my business up and running a lot faster than if I had to learn by trial and error.
Hope this is not too much.