Goulds Pumps 3410 - IOM - Manual (Page 34)

Priming by Automatic Primer Pump
Where there is a fluctuating suction lift that occasionally
might drop below normal limits of pump, or for
installations where there is any quantity of air entrained in
pumpage, system shown in Fig. 32 is very well adapted. A vacuum tank and a vacuum gauge can be installed near
primer pump and vacuum switch set to automatically start
or stop primer pump according to vacuum required to keep
system primed.
32
3410 IOM 1/2010
Fig. 31
Fig. 32