You can already find in Pev Grow this system for cloning marijuana plants. This hydroponic system is easy to use, very silent, generating an ideal environment for a fully development of seedlings and cuts.
For a proper use of this DWC hydroponic system we recommend to submerge to soak the roots 2 cm below the water level, thus avoiding stress and clones dehydration.
You must put expanded clay or arlite on the little gridded pots (in case of using pots on the alveolar tray) or use the polyethylene discs to support the clones, in a few days you will notice how the cuttings have rooted and are ready to be transplanted.