The position of the pump can influence the effectiveness of the flow of the insulin into our bodies. Here is the article from Diabetes Health.
I gather from this that the flow is best when the pump is located on the body above the tubing, so the insulin is flowing downward. It is poorest when the pump is below the tubing and the insulin is flowing upward. That explains why i get lower BG numbers when my pump is on my belt and the site is on my lower ab or legs. The insulin is always flowing downward in those situations. If my pump was on my belt and my site was on my upper ab, above my belt, then the flow would be less effective since it would travel in an upward direction.
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