A first pressure regulator, also in communication with the first reservoir, controls the pressure supplied through the pressure supply conduit to the first reservoir and a second pressure regulator, also in communication with the second reservoir, controls the pressure supplied through {HEAD ~ the pressure supply conduit} to said {TAIL ~ second reservoir} 
A first pressure regulator , also in communication with the first reservoir , controls the pressure supplied through the pressure supply conduit to the first reservoir and a second pressure regulator , also in communication with the second reservoir , controls the pressure supplied through { HEAD ~ the pressure supply conduit } to said { TAIL ~ second reservoir }
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH TAIL TAIL TAIL TAIL TAIL TAIL