The principle of the communicating pipes operate here in the above described manner when the height h1 in the reservoir 40 and {HEAD ~ the height h2} in the reservoir 41 are higher than the height hv of the connection conduit 42 with respect to the bottom of {TAIL ~ the tank} 36 at the height h=0 
The principle of the communicating pipes operate here in the above described manner when the height h1 in the reservoir 40 and { HEAD ~ the height h2 } in the reservoir 41 are higher than the height hv of the connection conduit 42 with respect to the bottom of { TAIL ~ the tank } 36 at the height h=0
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH