Oil, mildew and slick spots
Concrete takes a beating. Oil drips from the car, mildew settles where the shade stays, and a decade of dirt turns a pale driveway dark. The worst of it is the walkway that has gone slick underfoot.
Wand work by hand can leave stripes, with light and dark bands cut into the slab where the nozzle paused. It looks cleaner up close and uneven from the street.


