How much water should I put in the self-watering system? Vitesy Support May 10, 2018 15:17 Follow You can fill the self-watering system until you see the white part of the float. Related articles My home/office WiFi network doesn’t have a password? How can I connect Natural Air Purifier? How do I know when it's time to water the plant? What is the function of the strings? Should I use just one or both? Comments 0 comments Article is closed for comments.