Strange leaks in 55 Gallon Drum

I have a 55 gallon drum of used oil (motor oil, gear oil, trans fluid, etc). It"s slowly been filled up over the past 5 years or so.

Walking past it today, I noticed it was leaking. Ran my finger over the bottom of it, and some of the paint peeled off, and I saw the holes in the first picture. They were mostly sealed-up with sludge, but as soon as I poked around a bit, they started dripping out oil!

In the process of moving the drum around, another hole popped in the bottom of it (2nd and third picture). A chunk of paint popped off, with a hole underneath.

Any idea what caused this? I guess corrosion, but seems strange that the holes are almost perfectly round. And the rest of the drum looks fine. It originally held motor oil, and was new when I got it.

Also, any idea how to get rid of this? I probably got 30 gallons in the thing. I put the plugs in, and tipped it upside down to stop the leak. I"m worried it"s going to spring a new leak, though. Figured I"d call Safety Kleen tomorrow. Any other thoughts?
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I wish I had it. I burn used oil in my shop, and some in my tractor. I think craigslist has a place where you can give away stuff for free.
 
Water settling out of the oil, rusting through. Bet that whole end of the drum is pitted, you found the couple pits that made it through....

--->Paul
 
Was the oil leaking out pure oil or kind of watery??

I'm guessing it condensed water inside, the oil floated and it rusted through at the bottom. If you put a barrel pump in it, I'll bet you pump out 5 gallons of oily water before it turns to pure oil.

Like already suggested, find a plastic barrel and transfer it, but some plastics don't like transmission fluids.

If nothing else, get a new barrel, transfer the oil and put a pump on it, pump a few gallons out now and then to keep the water out.

Tim
 
Advertize on CL. tell callers the situation, that they need to bring a plastic drum or a bunch of fives, and a pump. You will still get many takers and save $$$$$ over calling safety Kleen. for some piece of mind you can get little, (they have different sizes) threaded plugs with rubber washers at the hardware, to seal leaks like yours.
 
Called around. Safety Kleen said they don"t work with homeowners, only business. Other environmental place said they could probably take care of it, for about $300.

Called my local mechanic, and he said he"d drop by in the next and pick it up for nothing. I tried to make sure he understood that the thing was rusted and had holes, but not sure he understood.

So, in the next couple days, hopefully the thing will be gone. Also gonna have a talk with the little brother about not stockpiling used oil.....
 

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