This won’t come clean. Or is it clean? Look closely at the trafficked areas.
This is an example of extreme pile distortion. This is multilevel tufted carpet tile. The higher tuffs became susceptible to distortion from foot traffic and rolling loads as they weren’t supported by the lower tuffs. As you look closely you can see that the carpet didn’t change colors, but rather the lower tuffs became more visible.
Unfortunately, there is no solution.
