How long have you had your promaster?
How do you have it set up (machine and hoses out the side or rear)?
Fresh water tank?
Do you think the 6 cylinder has enough power to keep up with the weight and not cause extra stress?
All the feed back you have would be appreciated.
pdate. (if anyone is interested) I finished setting up my nv2500 (Nissan 3/4 ton van) with my el diablo set up for back door access and I have twin tanks (50 gal) set behind the drivers seat. Fully loaded my van handles great, rides great, stops great and accelerates just as if it had better...
I live in southeast NM, and I see the same probably when cleaning in the country usually (occasionally in town). I haven't decided if it's from bottom of fibers or between carpet and pad either. Never pulled back to check. I use a truckmount myself.....the porty isn't the issue.
I'll give VLM a...
An owner of multiple janitorial supply stores recommended that method, said the auto scrubber just would be a deep enough scrub, the aggression from the 175 is what he recommended. This floor is marked up pretty bad, and this is what was called a DEEP clean for this type if floor.