Heres a link on the Hempy buckets by Hempy himself...

Cannabis and Marijuana seeds :: HomeGrown420 - The Hempy Bucket

Its just a sealed bucket with a 1/2 inch hole on the side an inch - 2 inches from the bottom filled with 4 parts perlite: 1 pt vermiculite......or all perlite....cover hole with screen.

Perlite = water retainning medium
Vermiculite = water wicking meduim

Just feed till you get water to come out of the hole water every 1-3 days...and your done.

It is so easy...i cant begin to tell you...i didnt get one burnt leaf thoughout the grow. If you have any question feel free to ask.