Ebb and Flow (or Flood and Drain) A hydroponic system in which the medium, usually aggregate pebbles (eg hydroton), is periodically flooded (watered) with nutrient solution and then drained again, feeding and aerating the medium and root system.
Drip System A very efficient watering system that employs a main hose with small water emitters. Water is metered out of the emitters, one drop at a time.
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Botanicare
 General Hydroponics
 American Hydroponics
 Hydrotek
 EZ-Clone
 Hydrofarm
 AeroGarden
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