Without a doubt presure washing is better than carpet cleaning, you earn more money, you get a higher average job value & the job satisfaction is much higher.
In the beginning I had an extra long base Iveco which had tons of room, even though I had a truckmount, tanks & reels. I just put the presure washing kit in the back.
Now I use a trailer which carries all the kit plus ladders, water fed poles and scaffold.
Lots of carpet cleaners have tried to get into pressure washing but gave up before they got the hang of how to do it, they got a bit of mess on thier faces, and started crying
stick with it and it will lead to the land of milk & honey.