One of the interesting parts of my jobs is correcting the things others have messed up. I had an inspection a couple weeks ago where a carpet cleaner using a Rotovac had distorted the pile of a commercial level loop. The distortion looked like swirls running across the main hallways. I recommended the cleaner reset the pile with heat and agitation. I received a phone call this week that the correction was unsuccessful and would I correct the issue for him. I went to the location. And heated the pile with a truck mounted extractor and pile lifted. The consumer was very happy with the correction and the company I brought in with the truck mount picked up a new cleaning contract.
Many times consumers express concern about their commercial carpet tile because of fraying along the edge. This issue generally appears in the high traffic areas first and usually within a couple months of installation.
I had a job like that today in a restaurant and micro brewery in central Wisconsin. The carpet in the traffic areas and under the tables was fraying along the length of manufacture, perpendicular to the yarn rows. The affected tiles were sheared using a pneumatic carpet carver after the correction the frayed appearance was completely corrected.
Yarn fray on commercial carpet tiles is not considered a manufacturing defect and is routinely corrected with shearing.