[jsmith948]

Where is your FW tank? The drain will be under the tank and is simply a 1/2" PEX line with a 1/4 turn valve or a cap on the end. If you don't see a line, look at the Coroplast under the tank. There may be a hole with some remnants of expanding foam around it. Perhaps the drain line has slipped up inside the Coroplast. It seems unlikely that the drain line has fallen off as that would allow the tank to drain. The drain line has to be there somewhere under the tank unless the factory failed to punch a hole for the drain line and it is hidden in the underbelly?