As I mentioned in earlier posts, I don't normally do walls, but my client asked, and I'm willing. Besides, it is pretty small. I am installing a retaining wall next week and have a question about base preparation. The wall is on a slope, so the base will be stepped. The base will be 8" deep (the area was disturbed when a basement was dug two years ago). My question: What is the best way to install the base, to make packing it easiest/most time-efficient? I'll use a plate compactor, but the runs before each step may be pretty short. The wall slopes from 0 to 3 feet in height over a span of 30 feet, then slopes back uphill to 0 feet again in just a 15 linear foot curve. One other question: I'll backfill with stone, and have perforated drain tile at the base. Since the wall slopes uphill in both directions, I don't have a convenient way to discharge the drain tile. Is it necessary that I even bother to do this? I was thinking the open tile would be enough to reduce the hydrostatic pressure on the back of the wall, and the water could weep through the blocks. Any recommendations? Thanks for any comments or feedback.