No manual-I’m confused (again)

The breaker should be on all the tine. To test if your bilge will work without the ign breaker on flip the switch to the bilge, if it works then no, if it doesn't then yes. Sounds like at one time a light switch or automatic bilge stuck on and drained the battery or you have some other electrical drain. Have the breaker on with every thing off and connect a test light between the end of the negitve battery cable and the negtive post on the battery if the test light comes on then you have a drain and need to track it down and fix it. If the light does not come on then you are good to go and have no battery drain.