toller wrote:

I bought a 55 gal polyethylene drum to use as part of a swim platform. It
has two screw in plugs. One is poly and fits tightly. The other is steel,
and the thread doesn't even resemble the thread on the opening it was in;
though it is a very snug fit. I doubt I will get a good seal on it...

US ("God is our co-pilot") Plastics probably sells the correct bungs...

Nick