two part toilet question..glacier bay

[Karen S.]

hi there

I inherited a glacier bay two part toilet with a recent property purchase. lucky me! The toilet works ok, but it is leaking from the tank, apparently through the two bolt holes that secure the tank to the bottom part. Here is the crazy thing, it is leaking only when actively flushing...otherwise the underside of the tank is dry and the tank is full (not a slow leak). Has anyone ever heard of this? and do you have any hints? I would pitch it in the dumpster, but the dumpster is filling rapidly so i will save it if I can. thanks

Karen