A system includes a portable liquid container having at least two chambers for containing at least two liquids separate and an apparatus having at least two separate input tubes configured for drawing liquid from the chambers. At least two separate output tubes are configured for passing at least two separate liquids to a user's mouth. A valve assembly includes a lower portion having at least two input connectors each joined to a one of the input tubes. An upper portion has at least two output connectors each joined to a one of the output tubes. An adjustable valve portion determines proportions of liquids in the separate chambers that are passed to the user's mouth where the liquids remain separate until reaching the user's mouth, and where liquids drawn back down the input tubes and the output tubes into the chambers remain substantially separated.