Heres the link ~
http://www.thcfarmer.com/forums/f131/doubleds-med-patient-bucket-diy-mpb-buckets-7883/
I didnt use the nicer fittings, I went with the cheapo little rubber grommets and plastic fittings they sell at pretty much every hydro store. This is what they look like ~
I turned my veg system around and put a drain on it. You can see some FF nutes in the pic but they are used ase weights to keep a lid down lol. I use technaflora nutes in my veg and flower.
Two pumps are in the fifth bucket of the four plant system. One for feed and one for the drip stream... oxymoron I know but its more of a top stream. You can see the bottom feed line enters in the middle, I had it coming from one end but the flow was way uneven so this has fixed the issue.
Hope this helps some, ask away if you got more ?s...
Note: I think the feed pump is too big because the water level is going above my drains, so I'll put a smaller one in tomorrow. Im gonna lower the drains on the next one I make and I'll also take pics of the process.
Double note: Im not a very experienced hydro grower and Im playing all this by trial and error. Im sure there is more error to be had so copy at your own risk
Edit: these are 3 gallon buckets with 8" net pots.