It's the whole carpet, and there is a lot of it. It's a 20k carpet with a lot of thread and a lot of fuzz. Even the areas that were not Sebo'd are the same, so its not the agitation, not the solution used and not the heat used ( around 60). As the carpet dried it got worse and worse, even the stairs where a hand tool was used at well under 100psi.
Not a happy customer!