What is actually in your tile and grout in Seattle
Seattle's glacial-till subsoil produces a fine grey silt that tracks in from parking strips and unpaved alleys, and it settles deep in the pile where a household vacuum never reaches. Add the moss and algae fragments that come off shaded north-facing walkways nine months of the year and you get the grey-green cast so common on light carpet in Ballard and Wallingford.
Surface methods move that material around. Our heated high-pressure spinner extraction is built to lift it out of the structure of the tile and grout and off the job site, which is why the rinse water tells the real story on a Seattle job.



