{TAIL ~ Flanges} 27, captively retained within {HEAD ~ rectangular holes} 29, hingably couple reservoir 2 to trough 28 
{ TAIL ~ Flanges } 27 , captively retained within { HEAD ~ rectangular holes } 29 , hingably couple reservoir 2 to trough 28
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH