I recently built and used a homemade extractor. I was very pleased and suprised on how well it worked. It is basically a threaded rod powered by a drill and extracts the honey into a large drum. After extracting half a super, the base of the rod started to wander around on the bottom of the drum. Does anyone have any suggestions on what I can mount to the bottom in order to hold the base of the rod to prevent it from moving and keep it centered??