Abstract: In a dosage system for delivering a predetermined amount and type of cleaning concentrate to a solvent inside a fluid tank, a pod holder is configured to form an inner volume for holding a pod containing the cleaning concentrate. A connector is configured to form a fluid connection between the inner volume of the pod holder and the inside of the fluid tank. A piercing device is configured to pierce the pod held by the pod holder. A push mechanism is configured to push the piercing device into the inner volume of the pod holder for piercing the pod to release the cleaning concentrate from the pod via the fluid connection of the connector into the inside of the fluid tank.