Quote Originally Posted by urbanfarmer
When you get a chance take a shot of the pipes coming directly out of the bell siphon. I am still concerned that it is creating a very long siphon tube whereas you need to introduce a hole somewhere, maybe some additionally linked pipes, where air can get in freely at all times.
UF....look at the pictures at the top of this page. The 'top picture' shows the lower section of the siphon drain, See the bottom of the metal shelf, at the top of the same picture?........ his buckets(grow beds) are sitting on it.
Here's an overall picture of his system....
No Fun with Hydroton

I'm 'guessing' the 'down' part of the drain is just over a foot...(?)