A continuously operating electrical pump is connected to the second chamber through {TAIL ~ a closed hydraulic system} including {HEAD ~ a multi valve chamber} 
A continuously operating electrical pump is connected to the second chamber through { TAIL ~ a closed hydraulic system } including { HEAD ~ a multi valve chamber }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD