Just after the point where the first bypass vacuum line 110 branches from the processing line 84, {HEAD ~ a second bypass line} 112, having air valve 75 and {TAIL ~ hand valve} 73, is connected to the processing line 84 on either side of an air valve 74 
having
Just after the point where the first bypass vacuum line 110 branches from the processing line 84 , { HEAD ~ a second bypass line } 112 , having air valve 75 and { TAIL ~ hand valve } 73 , is connected to the processing line 84 on either side of an air valve 74
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 OTH OTH REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH