A plastic bottle (PET) can be turned into into a self watering seed starter.
This tool complements the basic setup by allowing fresh air to enter the reservoir part and at the same time allow for more water in the reservoir by lifting up the planting part.
The same tool can also be used to mount the bottom part of a plastic bottle as a green house.
pet-self-watering-distance-tool.stl | 789.3KB |