Re: Is this bilge pump wiring as bad as I think?
I've had one of the Ultra switches for about 16 years with great results. I never thought much about it until last month, hanging upside-down in a friend's bilge in rough seas trying to fix a flapper that was getting stuck in the "pump" position every hour or so.
For a bilge alarm - a completely independent battery-operated one is a good idea. I picked up a 9V one a long time ago - the battery/buzzer goes anywhere and the float I just epoxied to the side of the bilge. Would be easy enough to make one up. Just an extra layer of safety in case my neighbor accidentally kicks my shore power cord and a hose rots out at the same time and no one notices it pumping for three or four days. (I'm not paranoid if it could really happen, right?)