Just a note that my brother sent 2 video clips of a small pulser pump
back in Ireland. They are short ones without sound.
They show the 6 inch pump stripped of its cowl and the water pulsing
from one of its airlift pipes. There is a slight whirlpool in the
foreground of one of the videos and that is the water going down the
6 inch pipe.
Hopefully there will be a few more videos in the next while. (pumping
higher!)
I will keep u posted on that.
The pump shown can pump to at least 7 m high.
Brian White