Backyard Aquaponics
A place to discuss aquaponics

I don't know if this has been discussed before, didn't find "pulser" on a search of the forum.

Kind of like a geyser pump except you would just need two volumes of water at different heights, no air pump needed. It also might work as some kind of backup?

http://www.animatedsoftware.com/pumpglos/glpulser.htm

A link to a trompe, which is what this pulser pump is starting from. The pulser pump is like a leaky trompe!

http://www.motherearthnews.com/Renewabl ... rompe.aspx

Wow, thats a neat novel idea! If nothing else perhaps we need could use the returning water to not only put oxygen in when it hits the tanks water, but also draw in some bubbles on its way to the outlet.

Yeah, I'm trying to think of a use for it but if you already have a volume of water at a particular height (by pumping it there), why not pump it higher? It may be useful to distribute some water to odd places, like plants up high or something.

I wonder if this intermittent action could be produced with a pump, venturi, then into a tee of some sort, with the air line coming in vertically and just above the water level, and somehow making the water in the tee rise and fall to generate pulses. Again not sure what that would be good for, aeration and top-off of header tanks?? Maybe a line of tees with small dripper hoses could emulate a more hydroponic-y system than the usual AP. The air pressure might keep the lines from clogging like if you just pumped AP water into them directly?

The bottom of this page with the siphon with air chamber has me thinking that you could modify this to pump small amounts of water as your beds go up and down in their normal cycle:

http://www.tiwalkme.org/BellAndSiphon.htm

Maybe use the air bleed on a pipe-in-pipe siphon as a little pumping line to plants above the beds?

looks like a variation of ram pump, if not the same

ram pump-1
ram pump-2