This Vacuum works as it should. Sometimes the suction of the lid doesn’t quite lineup with the container as the rubber around the top of container is not very wide. But once you mess around to get it in the right spot it works great. If you find it’s not suctioning, just push down on the lid while it’s running at the start to help it Squish against rubber and it works fine from there. When you see the dial starts to move, you can let go of the lid. If you find it’s not working, you need to just fiddle around with the rubber seal on the container. I use it to vacuum RTV moulds for lost wax Jewellery.