Abstract: A container includes: a first tube assembly for dispensation of liquid from the container; and a second tube assembly for filling the container. A base of the container has a sloped floor with a collection point defining the lowest point in the interior of the container. The first tube assembly is positioned above the collection point. Each tube assembly includes a valve device coupled to a top of the container, and a linear tube extending from the top into the interior of the container. Each tube assembly includes a vented foot and a flexible section connecting the linear tube to the vented foot. The container may be constructed as a bottle having an upper ring and a lower ring attached thereto. The container may be configured for pneumatic or reciprocating mixing via the first tube assembly and second tube assembly.