After spending three weekends 'moving' from our V32 to our 40.5, I have a couple of quick and dumb questions: 1. How do you know when the holding tank is full other than by residue on the hull side? I put a sensor in my V32 when almost new, so never had the problem after that. Before, however, I split the top seam. Also, anyone install an indicator? What kind? 2. I can't seem to get the aft fresh water tank to evacuate the air from the line, so the pump pulls air. Had the same problem on the port tank. All but one tank were dry, so I suppose there is air in the system. Believe the pump is self primimg. Any suggestions? 3. The bilge pump switch is acting up. Is that whole aft assembly one piece that comes up for access to the pump and switch? Thanks for any info you might have. Shucks, I haven't even sailed it for over an hour, and still the questions start.. Rick D.