A follow-up to my post of last weekend. After talking to Catalina they informed me that the tank is not structural so it is not covered by the 5 year warranty. They did give me the number of the tank Mfg, Ezell, and they have been most helpfull. They are making a new tank ASAP. We haven't worked out the $$ part, but they said we will, and based on all conversations so far I trust them. It is very nice to see that Catalina deals with quality component manufacturers that stand behind their products. The only help I got from Catalina is the phone #. I will be writing Mr. Butler to share my thoughts with him. As far as the tank is concerned I took it home filled it with red dye colored water, plugged all the holes,then pressurized the tank by hooking a bike pump to the return valve. Almost immediatly you could see the red dye on the paper towels laid down along the leading edge. Never a dull moment as a boat owner. John J