Summer Project: Guest House Running Water

This summer, I’m planning on running water lines from the main house to the guest house, and connecting drain lines from the guest house to the septic system on our land. This will enable me to have a water heater installed (I’ll have a professional do this, since it involves working hooking up liquid propane lines, which I want no part of), and then install a bathroom in the guest house. Initially, this seemed like a pretty intimidating project, but in reality all it will involve is digging a trench below the frostline (after having digger’s hotline mark any buried electrical lines), along roughly these lines: