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