It is also possible to do this with a mechanical fuel pump, believe it or not.
In that case you would use a switch over valve.
Tanks, Inc. has one for $50.
https://www.tanksinc.com/index.cfm/page/...=prod/prd93.htmAnd they also show how to set that up:
That would still be worth it for someone that didn't want to change over to electric fuel pumps.
