Subversion delete repository



Hi I am looking to delete a repository I setup under subversion. On the control panel it lists the repositories I setup. I now want to delete one so that I can start over. I have tried to remove the rep twice using the delete link. After the processing is complete it is true I can no longer access that web page view of the repository but if I recreate a repository with the same name then the old data is still there. How does one clean it our for good?