Nizee - I had the same problem. I cleaned it up, applied a little shoegoo, and then worked it into the little crack with a warm ( not hot ) soldering iron.
I just plugged the soldering iron in long enough so it would barely melt plastic.
Plug the pressure line with a short piece of fuel tubing and a screw, and blow into the other line while the tank is in a bowl of water just to check for little leaks.
( hold the lib shut too, btw! ) If it leaks, you'll see bubbles.