Opened my first (very small) janitorial service at 16. (I also did hard surface floors.)
Then at 19 heard about something called "steam carpet cleaning". Bought a Castex 700. Hand laid fiberglass, single stage 110" vacuum and a 60 psi Oberdorfer pump. Weighed 95# and absolutely indestructible. (I dropped it out of the back of my van on a freeway and it fired right up.) Oh, and by the way, 48 hour dry time!
At 23 my new partner and I decided to build one of those new-fangled "truck mounts". After all, we reasoned "how hard can it be"? We found out.
Steve Toburen
www.SFS.JonDon.com
PS Oh, and BTW there was no internet provided "shoulder to cry on" back then. You young whipper-snappers don't know how good you have it!