Wheatgrass juicing problems
Hi, I have an Omega juicer, and I've never had this happen. I recommend that you double check to see if you have the right parts attached. It comes with two inserts, one with a small metal screen on the bottom, the other has no screen, it is solid. The solid one is for crushing and proccessing food. The one with the screen is used for juicing. Make sure you have the correct one installed.
If that is not the problem, I think perhaps the grass is too dry? Maybe there isn't enough moisture in it to extract much. I really can't say, though. Try juicing something else, like carrots, and see if you can get some juice there.
If all else fails, contact Omega at their website. They have terrific customer service. I've tested it already with a warranty replacement.