The simple self watering plastic bottle garden.
This guy has designed a simple yet practical method of having 6 large plastic bottles that are modified and used as a garden that is self watering. There are 3 watering methods for you to chose and each is totally different.
1. Locate and install a 1″ stand pipe to fill the water tank.
2. A float valve is inserted through the base container and attached to a garden hose.
3. One of the 6 bottles used has 2 holes drilled just above the lid, filled with water and inverted into the the container.
Watch this video, the method is very well explained.