It may be helpful to “prime” the Voutia™ pump using a syringe prior to use. When the syringe is attached to the INLET side pump, it pulls water from the reservoir into the pump, thus priming it.
CAUTION: See user instructions for priming. Do not attempt to inject water back into the Voutia™ system earpiece port. Once the water begins to enter the syringe, detach the syringe and dispose of any liquid in an appropriate manner.