Cooler Cart Leaking / Drain Port is Leaking

The Cooler Cart comes with a sealing gasket inside the hardware bag. 

The sealing gasket must be placed inside the drain hose/drain extension tube to prevent leaking.

HOW TO INSTALL DRAIN EXTENSION TUBE:
When installing the Drain Extension Tube, use the rubber gasket as following:
1. Put the rubber gasket into the drain plug with tap.
2. Tighten the Drain Cap onto the threaded end of the Drain Extension Tube.
3. Have the Drain Extension Tube tightened onto the drain spout.