Chapter 1, Basic Operation Operation Manual1-4 GEMINI Twin-Port SamplerOperation Instructions1. Connect the pump inlet to the GEMINI Sampler barb fittingusing the tubing and the adapter supplied. (The adaptermay not be needed for some pumps.)2. Turn on the pump, and adjust the flow to approximately 1.5LPM (1.2 to 1.7 LPM). As a general rule, the pump flowrate needs to be at least two to three times the total flowrate through the tubes.3. Remove the Tube Protector from the GEMINI Sampler.