After about 10 prototypes, I got my setup pretty well dialed in.
Here's a few tips:
1. fog alone isn't enough. it helps tremendously, but at some point the fog just won't be able to penetrate the massive root system you're going to develop. As a result, do an ebb and fog system- nutramist actually has info on how to set this up on their site.
2. this is not something you can build for "free". You are simply going to have to spend a few bucks, or you are wasting your time.
3. you can't just put a fogger in a tote with some water and expect results, nor can you do like the guy in the video and actually expect any real results. The idiots with the foggers in the totes are just killing their plants, and the guy with the video is maybe giving his plants a teeny, teeenny tiny boost.
4. I use a separate container for my fogger because the nutes for the fogger go half strength, and also because if you put humic acid or any tea type fert in, the fogger will be unable to nebulize the water- too much heavy stuff floating around. Also, the water in the fogger gets pretty warm.
On the plus side, the fogger sterilizes the nutrient solution, so your container does not have to be light proof.
So here's my setup:
Fogger:
Fogger head
1 liter plastic paint mixing cup from home depot
5 Gallon Bucket
5 Gallon bucket Lid (the kind you can remove and put back on easily- not the kind that locks on)
10 feet of 4" dryer hose
2 peices of foam board
zip ties
1 1/4 electrical MA and FA
small fan from radio shack
multi voltage power supply for fan
2 dryer vert wall plates
15 minute increment timer
Cut the two foam pieces in a circle that will fit all the way down in the bucket.
cut out a center hole in both foam peices that the cup fits through.
cut the cup off at about 2 inches tall
drill holes in the cup in the bottom to let in liquid and 4 on the sides to attach it to the hose.
figure out what depth the cup needs to hang at so that the sensor on the fogger is under water- if it is too high, the sensor will turn the fogger off, and if it is too low the fogger will not put out its best fog.
cut three holes in the lid- one in the center for the dryer duct fitting, and two for the fan and fill/test hole (1 1/4 inch)
cut about 14 inches of vent. attach one end to the cup, the other end to the fitting.
mount the ma and fa to the lid
tape the fan to the MA
cut duct to go to the table.
put it all together
FOG LIKE A PRO!
pics- 1 is setup 2 is roots at 2 weeks, 3 is roots at 4 weeks- yah, that is 2 weeks of root growth. same plant.
If you're really interested, I'd be happy to send more pics and more detailed instructions.