Thanks for the comment, Commander. I have heard nothing but great things about those Tuff Stuff products, and you are further proving that for me! I may take a ride over there today (it's about 30 miles away from me) to see what they have. I will keep you all posted on what I get.

That trough feeder looks like it may be awesome! Here is a link for it:

http://www.tractorsupply.com/galvanized ... -l-2172497

The only thing is that it's 18 inches deep, where as the 40 gallon ones are only 13" deep. I had planned to keep only about 11" of grow media in the beds, and if I went with the trough, that would leave a lot of space in there. I guess the advantage to the trough is that I would only need to make one bell siphon instead of three......but since it's so deep, I may have too much space in there since it would only be filled 3/4" of the way up.