After this one failed, I made a different no waste DIY feeder, design courtesy of another BYC member (aart). The design is much better thought out and the feeder has been working well so far for me. Here's her article describing the build...
This thread is 7 years old and this feeder doesn't actually work for controlling feed waste. I made the mistake of digging up this old thread and making one of these feeders myself just last week. See my post on the page before this one. Total waste of time and effort.
There are ways to do it differently and solve the problem, but that would require changing the design. What I’m saying is that the way it is in the original post, the design does not work in controlling the spillage.
See my post above and the OP’s diagram. There’s nothing in the elbow left to “leave down”. It ends at the inner bend after you cut it, and there’s nothing left to extend down.
The design itself doesn’t leave any vertical room in the elbow, because the pipe is cut so close to the inner bend of the elbow. There’s practically no vertical section left at the red line where you’re supposed to cut:
The red line is pretty much at the same level as the other end of the...
I just found this thread and made this feeder. I'm sad to report that it failed the spill-proof test miserably! The chickens raked an obscene amount of food out of it. Because of how the elbow is cut on the inside end, there isn't really any kind of a lip there to prevent food from being billed...