So after doing the POR 15 gas tank reseal and a new fuel pump, I've found that my tank is sucking air, even with 5 gallons in it. I'm assuming the pick up tube is rusted through. My truck is a one ton, but someone wedged a 1/2 ton tank in there at one point. Any body have any experiences or knowledge of how to fix this? I really don't want to buy another tank since I just dumped $70 worth of sealer in it.