Once you have nailed the second course in place, lay a thin bed of gravel on the ground behind it, sloping it 1 inch every 4 feet. Lay drainpipe on the gravel and against the wall. (If a sidewall turns uphill, lay the drainpipe before you put in the sidewall's second course.) Deadmen and tiebacks are installed on every other course to anchor the wall. They should be offset from the ones on lower courses. Fold the landscape fabric out of the way, cover the drainpipe with gravel, and dig trenches for the deadmen and tiebacks at 4-foot intervals. Make each trench large enough for a 4-foot tieback and a 3-foot deadman. Dig so the bottom of the trench is level with the top of the first course. Cut a hole in the landscape fabric for each deadman.