I bought this new and love it. I would love to hear from lucky people that own this boat and need their input on the capacities of both fresh water and holding tanks. The Manual says both tanks are 16 gallons. I don't trust the gauge and saw the same boat listed for sale that the tanks hold 28 gallons. I have no regal dealer near me (lake Coeur d Alene) and would love your input. Call me even if you want Bill Mangis 509-998-9170