It all depends on the pump you have, some have a built-in switch, and some don't, but may have separate float switch mounted in the bilge to turn on the pump.
And as far as how it's wired, that depends,,, if you have it wired directly to the battery your fine, but if it's wired to master battery shut-off switch, it won't come on if it's off, so you may want to check that before you leave it..
if you have 2 batteries just switch it to 1 of them, and the other will still start you up..
And as far as how it's wired, that depends,,, if you have it wired directly to the battery your fine, but if it's wired to master battery shut-off switch, it won't come on if it's off, so you may want to check that before you leave it..
if you have 2 batteries just switch it to 1 of them, and the other will still start you up..