[tman]

your not going to like this. Get a plastic straw, the longer the better. Make sure no plastic shavings on the straw are going to fall off. put the straw in the resevoir, and suck gently, not enough to put the fluid in your mouth, but enough in the straw itself, remove the straw with a bit of fluid in it, and empty it into a container, repeat until at the specified level, and make sure you dont drink any!