Here is a simple question for someone. How do you open one of those plastic drums? I have a drum of generic roundup, with what appears to be two 2 inch holes. Threaded I assume. I have a pump for it, but I can't figure out how to get the plug out of either hole. I tried to unscrew it, but no luck. It's plastic so any force just squishes the plastic.
For 55 gal plastic drum I'd use a screw driver pop open the cap. Under the cap there is a screwed in cap. It will take a proper piece of metal or wood to unscrew the cap.