They get dirty because they're typically made of porous ingredients like concrete ... Before you begin, spray a small section of your retaining wall, wipe it off, and check for any signs of ...

Based in Texas, Superior Concrete Products is a maker of precast concrete screening walls, rail fences, and retaining walls.

(For a curved wall, mark instead with a garden hose or spray ... the retaining wall is going to stand. Now it’s time to build the actual wall, one tier a time. Fit the stones or concrete members ...