Rich and Squeeky. Thanx but I still don't get it. I was raised on a West Texas irrigated cotton farm. We used aluminum tubes to suck or siphon water from a stopped up ditch, over the side of the ditch and into the furrow. It kept running as long as the siphoning end was below water by a sufficient amount.
However, it didn't start on its own. We had to put one end of the tube under water in the ditch; then put most of the rest of the tube in the ditch to almost fill it with water. Next we placed our hand over the furrow end of the tube to create a vacuum and then quickly pulled the tube over the dam with the furrow end lower than the ditch end.
I can understand how a tube/pipe through a dam could start on it's own but can't understand how a tube/pipe can be started siphoning when the top part of the pipe is out of the water. Maybe I need to go back and re-read some stuff.
