I own a company that is one of the largest dealers for a certain Mud Motor (dont wanna spam the name, not the point) in the country. I get about 10 of these crates that wind up empty a week in certain times of the year. They are free, i actually have to burn them.
I decided to save them and sink them as crappie structure. They are roughly 2ft wide, 6 ft long and 5 ft tall. Three of them in one spot would be a great crappie hole!
SO, I gathered 3 of them, put them in the boat and had 2 quickcrete bags (80lbs each) for each one,
Went the water, slid one (empty ) overboard and it only drafted about 2 inches of water. Being a boat builder I started taking notes!!

Just kidding.
But when I thru in the first 2 sacks of crete, (all I planned to use) this crate just laughed at me. It took FOUR! FOUR bags, 320lbs to make this thingsink slower than the titanic! It sank so slow I have no idea how far it drifted before it settled. i returned to the bank without sinking another one till i figured out a cheaper way.
Any ideas?
Let me beat you to the punch, No I do not want to leave the motor in it! LOL!