- Get 2 cups and fill them with water
- Fill the syringe with water from one cup and wait 30 seconds. Throw out that water and cup.
- Empty the syringe and fill it with bleach. Wait 30 seconds before rinsing it out.
- Refill the syringe with bleach two more times. Wait at least 30 seconds before rinsing.
- Fill the syringe with water from the second container several times. This will get rid of the bleach.