How do you get a hydrojetting contractor to let loose his inner Picasso in public? Just ask, according to Brian Gleeson, owner of Midwest Mobile Waterjet LLC, based in suburban St. Paul, Minn.The firm’s waterjetting wizardry is on exhibit at the Walker Art Center in Minneapolis. Midwest crews used high-pressure water to blast thousands of holes that, from afar, create a random, paisley-like pattern on the exterior of the center’s walls, made out of poured concrete mixed with pea gravel.“It came out of left field,” says Gleeson. “It’s really cool. I’ve never seen anything else like it.” The architecture firm
