Smoke, the switches I use are the on/off/on type you mentioned. Up position is manual on, off in the middle position and automatic in the down position. I also have a bright red LED light wired to the switch. When the pump on, it also turns the LED on, signaling me that the pump is running. That way if I have it in manual mode and I forget it's on, it reminds me to turn it off (so I don't run down the battery), and if it (the light) is on in auto mode it tells me to check and see why the pump is running.
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
If God didn't have a purpose for us we wouldn't be here, so
Live simply, Love generously, Care deeply, Speak kindly.
(Leave the rest to God) 
Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
Last edited by Destroyer; 02-28-2015 at 08:25 AM.
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