I let it sit out in the sun all day today, then i filled it with water and about a half-gallon of bleach. i'm gonna let it sit overnight, if the smell remains tomorrow it goes in the trash.
Or you could probably find a fisherman who won't mind notice the smell.
so even after the overnight bleach-bath it still smells like death...thanks for all the suggestions but i think this cooler is destined for storing yard tools or something...
Nuke it from orbit, it's the only way to be sure
I'm a little surprised it still smells that bad. I have accidentally left grain in my cooler for a week a few times and it smelled horrible but after and good cleaning and air dry it's back to normal.
Make sure you get a blue cooler... You weren't able to remediate the tun. You're making the right move IMO. Find an Extreme at Walmart- probably be less than $40.