One wall 74 of the manifold 46 includes a plurality of holes that place the downstream volume 68 in {HEAD ~ fluid communication} with {TAIL ~ the tube} set 48 
with
One wall 74 of the manifold 46 includes a plurality of holes that place the downstream volume 68 in { HEAD ~ fluid communication } with { TAIL ~ the tube } set 48
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 REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH