Abstract: Embodiments of a container system for ingestion by humans and method of storing and dispensing liquids for ingestion by humans that include at least at least one first structure that can be in the general shape of a bottle. The system further includes at least one at least partially flexible container that is positioned at least partially in an inner space. The system also includes at least one liquid passageway and at least one air purger that is capable of purging air out of the at least one at least partially flexible container through at least one opening. The system also includes at least one ball check valve and at least one manually initiated valve. The invention also includes embodiments of an air pump purging system and embodiments of a method for an air pump purging system for a container system for liquids ingestible by humans.