I have bees that are drinking all the Hummingbird sugar water in the feeders and they chase the Hummingbirds away. Is there anything that I can do to stop this?

A properly designed and functioning feeder will not be affected by bees. I have 5 feeders up and don't have a bee problem. Check to see if there is a hairline crack in the body where the mix may be leaking out. If you spill some putting it up in the tree that might attract the bees.
If you go to wild birds unlimited and buy there feeder, it is guaranteed for life and you won't have a problem with bees.
Tony M