I finished building a fluid bed. It works, but I have some questions. I've noticed some little small volcanoes in the powder when the air is pumping in. The more I open the valve, the more the powder becomes a big cloud of smoke. When I turn the valve down, there is very little movement. The powder paint seems very thick. I mixed it up before I put it in the canister, and then mixed it up again once in the canister. Also, when you are using glue to secure a vacuum bag to the bottom of the canister, if you sit it on top of a piece of wood to press down and secure it, it sticks to the wood, and the rips when I try to lift it off. Any suggestions..