An apparatus 1, wherein the second stage receiving container comprises a feed opening, wherein {TAIL ~ the channel} connects the discharge members of the first stage receiving containers to the feed opening, and wherein the alternating device comprises a control device configured to control the shut off members in {HEAD ~ an alternating manner} 
An apparatus 1 , wherein the second stage receiving container comprises a feed opening , wherein { TAIL ~ the channel } connects the discharge members of the first stage receiving containers to the feed opening , and wherein the alternating device comprises a control device configured to control the shut off members in { HEAD ~ an alternating manner }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD