Good information. Thank you.To access the freshwater tank it is a little different than the sump access. The fresh water tank is in the aft. To access it you have to take the carpet baseboard off stepping down into the Aft. Second remove the wood riser behind baseboard and you will see the top of the tank. My clamps were loose and when I would overfill the fresh water tank and water was in the line it would drain out until water level came back down.