plug assembly for rubbermaid 100 gal horse water tank?

Question

this is a grey plastic tank, we had a extension on the tank and it flipped over and broke the whole assembly for the drain.

Answer 1

If the threads are still intact you can go to your local hardware store to get a screw-in plug (assuming it is the same set up as a regular metal tank). If not, emailing Rubbermaid like someone already said, is a good idea.

Answer 2

E-mail Rubbermaid.