here's where it begins. first off credit to my friend. he's using this method and is sharing it with me. rumor has it Humboldt county growers are doing it a lot and that's where he heard of it. i will be using 2 600w HPS lights. vertical hanging, no hoods. i will have 7 walls, leaving the 8th out for access. 3 tiers high. each wall will be 18" across and 5' tall. there will be 2 holes in each tier on each wall for a total of 6 sites per wall. the octagon will be made of 4" pvc tubing and fittings. i will drill holes to place cubes. i will have a reservoir at the bottom with a pump that will pump to the top. each tier will be slightly sloped so it drains down to the next one. the lights will be hung from the center. i have not a thing yet, so this is a project in planning. i will post all new steps as completed.