OK I am brand new to boating and so this is my first boat owner question! My brand new Challenger has an automatic bilge pump that runs periodically throughout the day to empty the bilge. The weather can be perfect (no rain) and the covers on so there has been no water entering the boat at all. The pump will run for approximately 45-60 seconds and empty a 1-2 gallons of water. This repeats . Is this normal? What is the purpose of a bilge? Is it deigned to just collect water getting into the boat from rain etc or does it normally fill and empty? There is no water in the bilge after I have been boating. Is this others experience as well? The maual lists a few reasons why water might be in the bilge making me think perhaps it should not be there. I simply do not know-help!