Guardian Systems, LLC

Brent A Mills

Joel H Young

Cody Cook

Justin Mark Snodgrass

An apparatus may include a float member and an output line. The float member is configured in contacting adjacency to first and second liquids contained in a container. The first liquid is less dense than the second liquid such that the first liquid floats on top of the second liquid. The float member may have a specific gravity selected responsive to the first and second liquids. When the second liquid is pulled from the container through the output line to a predetermined level, the float member occludes the output line. The specific gravity of the float member may be selected based on the fluid in the container previously, currently, or in the future, or some combination of the three. The specific gravity of the float member may be adjusted by changing material within the float member or changing the float member itself from a plurality of float members.

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Kingfisher, OK, United States of America

Brent A Mills