{HEAD ~ A backflush line} has {TAIL ~ an outlet} disposed downstream of the filter, and a backflush pump is configured to supply backflush fluid through the backflush line against the filter 
has
{ HEAD ~ A backflush line } has { TAIL ~ an outlet } disposed downstream of the filter , and a backflush pump is configured to supply backflush fluid through the backflush line against the filter
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH