I have a 21 foot sea boss bay boat that I'm having trouble with my livewell system. I have two livewell pumps and they seem to only pump while I am underway. I can hear the front pump turn on not to sure about the back one as its been a little while since I have had the boat out and am just getting around to fixing some small things before a friend comes home from the military. Any suggestions as to small tricks I could do that hopefully doesn't involve replacing both pumps.