Cut a lid into 55 Gallon Plastic Drum?
 

A friend of mine gave me a plastic 55 gallon drum that was used to hold vinegar. The problem is it does not have a removable lid only 2 small screw in caps. Is there a way to make a lid and still be able to use it for storing saltwater?

jigsaw

router and straight bit

You can get drums with removable lids fairly cheap. Check usplastic.com Sometimes free is not worth the trouble :)

As mentioned you can certainly cut the top out of the drum but what about drilling a hole in the side and hooking up valve with a bulkhead or uniseal.

Yeah, a uniseal would work. Thought about doing something like that with a bulkhead but then I couldn't figure out how I would get the bulkhead screwed in without getting a hand in there.

Ive got the same style drums and put a uniseal and 1" valve in the bottom with no problems. just make sure to get the right size hole saw.