The bilge pump on my O 23 (1983) does not seem to be working. Is there a seperate power line to the battery or does it come through the junction box. Also has anyone replaced a pump while the boat is in the water or should I wait for the end of the season for pull out.BTW how much H2O is reasonable to have in the bilge during a dry, no rain, week and do all of the coolers on the 23 drain into the bilge or can I divert it. Thanks, happy sailing.