If you are the sort of person that likes to prioritize power washing over other cleaning methods that chances are that you want to take advantage of the best machine in the market. Lots of factors can impact your decision. For example, you might want to start thinking about how much money you are willing to spend because of the fact that some machines are extremely expensive but at the same time provide incredible features that you would want to have and others will be very cheap and affordable but might not have any extra features that might help make your power washing experience exactly what you have always wanted it to be.
If you want a machine that is right there in middle by providing you with a wide array of features and being highly durable in all situations but not costing so much that you would worry about how you would manage to afford it, you might want to do some research on the Simpson Megashot. This is a machine that has received a lot of praise from everyone in the power washing industry, with many going so far as to say that it has changed the game entirely and allowed people to power wash to an extent that was simply not thought to be possible before.
Buying this machine can be an excellent expense, and in many ways it could even seem like more of an investment. Cleanliness is very important for day to day life, so spending a little extra money on something that helps you maintain the maximum amount of cleanliness on a regular basis is probably going to be a good idea for you given its benefits.