Where are you located?As I shop for portables, some are claiming that their machines can only be used on Commercial Applications.
What is a good residential and commercial machine?
I'm primarily a Truck Mount guy now. But I still use a portable on some jobs. I started my business with a pick up truck and a portable. A Mytee M5 and a rotary. You can do a dam good job with a Mytee portable and a rotary like the Mytee T Rex Jr. I would suggest toy look into getting the Mytee 7303 LX Vacuum Booster. Don't let the name fool you. This small versital light weight machine has the approximately the same vacuum power as my Hydramaster CDS Truck Mount at 100' Here's link to the machine. https://www.mytee.com/products/7303lx-vacuum-booster/I see Mytee has a portable with last step chemical injection. I did not see that before. That would be better for rinse agents and preserving the warranty.