I think the instructions manual is lacking information. Very basic info in the manual. Found way better info on YouTube. The rig itself is really good. Easy to clean. The dry herb you cannot add too much. (The manual does not mention that) You have to add a glass or ceramic bowl to the concentrate atomizer ( the manual does not mention this) It comes with lots of spare parts. ( the manual does not list what each of these parts are. All in all it’s a great rig works great. A lot of trouble shooting to get it working because poor instructions in owner manual. If you watch it. Watch a few YouTube videos to figure out how to use it correctly