Gorman-Rupp Pumps 04B3-F4L 1316966 and up - Manual (Page 13)

OM-01216 0 SERIES
PAGE B - 6 INSTALLATION
air from the top of the pump during the priming pro­
cess. This may be accomplished by installing a by­
pass line from the top of the pump, back to the
source of the liquid. The end of the bypass line
must be submerged. The line must be large
enough to prevent clogging, but not so large as to
affect pump discharge capacity.