There is no switch in our system. The pump comes on when the engine key is in the on position and stays on (as needed). There is a fuse adjacent to the pump, and under the assumption that it is a flow through pump while running or not (per specs and the dealer rep) I may just take the fuse out to cut down on pump wear since the only time I'm going to use it is to refill the RACOR, in which case I'll be down in the hole anyway.
S/V ARGO - Pacific Seacraft 37 Hull No. 309