Personal water and additive apparatus

A personal water and additive apparatus, comprising:

• a non-pressurized first container capable of holding liquid;
• a manifold having a water passageway and an additive passageway, the water passageway and additive passageway intersecting to form a single mixing passageway, the water passageway having a larger diameter than the additive passageway;
• a first tube connecting the first container to the water passageway of the manifold, the combination of the first tube and the water passageway defining a water channel;
• a non-pressurized second container capable of holding liquid, the second container having a volume less than half a volume of the first container;
• a second tube connecting the second container to the additive passageway of the manifold, the combination of the second tube and the additive passageway defining an additive channel;
• an outlet tube having one end connected to the mixing passageway of the manifold;
• a check valve disposed in the water channel;
• and
• a restrictive orifice disposed in the additive channel.