posted 11-21-2005 01:02 AM ET (US)
Derf is right. One brown wire is PUMP IS ON when +12 is applied.
Other brown wire is PUMP IS CONTROLLED BY FLOAT switch when +12
is applied.
Black is ground.
I don't remember which brown wire is which, but the pump
instructions will tell you..
Usual way of wiring is to use a DPST center off switch.
Switch up applies power to PUMP IS ON and to the pilot light
on the switch.
Switch down applies power to PUMP IS CONTROLLED BY FLOAT.
Wiring it this way will turn on the pilot light when pump
is running for either reason.
Be sure seal the connections well in the bilge.
What boat?
Chuck