My sample is not mixing well in one or all my bags. How can I improve the mixing?

If the sample is mixing poorly at one or a few positions, the mixing pads may not be making good contact with the bag and paddle behind it. Refer to TDF Service Procedure Mixing Pad Adjustment (TS010). 

If the sample is mixing poorly in general, the addition of flow control valves on the inrush and exhaust of nitrogen at the mixer piston will help. These flow control valves are accessible from the rear of the instrument and can provide better mixing control. Refer to TDF Service Procedure Mixer Flow Control Valve Installation and Adjustment (TS030). A replacement Mixer Flow Control Valve Assembly (Part #: TDF113) is available for purchase.