These and other objects of the instant invention are also achieved by providing an apparatus for automatically dislodging a person or {HEAD ~ thing} trapped at {TAIL ~ the drain} of a liquid reservoir 
trapped at
These and other objects of the instant invention are also achieved by providing an apparatus for automatically dislodging a person or { HEAD ~ thing } trapped at { TAIL ~ the drain } of a liquid reservoir
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 REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH