Way to purge EasyDiscuss from my DB?

Is there a way o purge the data safely from my MySQL Database so I can start from scratch? I have several thousand posts that were corrupted via an import from Kunena and I just want to start over again, however, I know that the data has greatly inflated the size of the database and I want to purge it before trying again. The rest of the site must not be impacted.

Thanks!
Mark