means situated within said chamber for receiving said liquid therein, and means connected to said liquid receiving means for feeding said liquid to said {HEAD ~ liquid receiving means} at {TAIL ~ a predetermined rate} 
at
means situated within said chamber for receiving said liquid therein , and means connected to said liquid receiving means for feeding said liquid to said { HEAD ~ liquid receiving means } at { TAIL ~ a predetermined rate }
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL