After you've used your VS injector, you need to remove the needle and clean it in warm water with detergent added. The plunger head O-ring should be oiled with food grade oil (such as olive oil) before storing the VS injector.
Watch the video below to learn how to:
Remove the needle safely
Clean the injector
Flush (rinse) to remove the soapy water
Lubricate the plunger head o-ring to prevent it drying out
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