Add a tablespoon of good quality bleach in a 2 liter water container. Place the Bella Pump and its tubes into the container, leaving them immersed for 2 hours. After 2 hours, place the Bella Pump without the tubes in the upright position, and pump several times for the water to pass through its mechanism, completing the hygiene. After this process, wash the Bella Pump in running water, put clean water in a bowl and pump it several times to remove the bleach. Repeat this process every 3 or 4 gallon changes.
