Our drain outlet seems to be working well, so Jeff covered the pipes with more stone, then laid pieces of driveway fabric over everything, then covered that with more stone.

Our 2" foam board only came in 2x8s, and we need about 100 pieces. The supplier had a full unit of 96 pieces already shrink-wrapped, so we got that along with 4 additional pieces.. This looked pretty strange riding in the back of a pickup truck.