Spare tire well plug??

[OneBad68]

Originally Posted by AzDon

I'm thinking that what you'd really want is a "duckbill" type drain. The best description I can come up with is this. Picture a piece of hose that stays naturally flattened EXCEPT WHEN water is trying to drain through vertically. They are often used as A/C condesate drains in big trucks and also sometimes on the bottom of bigrig air filter housings.

That makes sense. Thanks for the idea.