Aeroponics systems can be constructed using an empty container, net pots, a pump to push air around the roots. The top of the net pot is covered with plastic or cling film to keep the humidity created by the loose plant roots. A system can be made with a raft and hand-watering or without a raft and is based on how deep your chosen container is. A system can also be constructed by suspending roots in an airtight bag that is cut to allow the root systems access to air at the top of the chamber.