We’ve been through how to build a self watering container, talked about what kind of potting soil to use and how to make it. Now I am going to tell (and show) you how to water them and how to tell it’s filled:
On my fire escape garden, I use a funnel and an empty juice bottle.
In my Brooklyn garden, I use a hose.
Fill with water (not Kool-Aid) through the pipe.
Once the reservoir is filled, it will start to come out of the overflow hole that was drilled into the side.