Hi, Paul, It can work with a foot of head but 1 and a half ft is better. I also used to think that it needs to go about 6 ft deep to get enough pressure for the air but now I think 3 ft deep will work.
You just need a bundle of 1/4 inch tubes to pump the water up if you do the 3 ft deeep thing.
I am calling the tiny version pulser pump nano. If anyone has a stream and wants to try, I would be happy to make suggestions. If someone did it soon, and did a video response to mine, or to my original pulser pump video, I would be really happy. The pulser pump was nominated in a big competition in Austria (the ars electronica next idea competition) so if something happened before the judging takes place, it helps vindicate this whole open method of development and might even help get a high place in the competition. And if someone is quick, they can put the first video in the world of a working pulser pump nano on the internet!
That is something that nobody can take away from you.
Ever!
Thanks
Brian
paul wheaton wrote:
Does it need more than a foot or two of head?
how does the air get into the water that is going down? Is it nothing more than dissolved oxygen?