[Users] Cannot add Host. Host with the same address already exists.

Hi All, Ovirt 3.3.3 I have removed a host from the gui and want to re-add it, there was something wrong with the installation of this host. When adding the host I get: "Error while executing action: Cannot add Host. Host with the same address already exists." It seems that the host is still in the DB somewhere and it is, I see some NULL columns for that host because it's actually not really "there" anymore and stuff like statics are not updated. I need to clean this one out, how can I accomplish this without getting a "dirty" DB ? Thanks! Cheers, Matt