The Waterfarm is a self-contained hydroponic system that consists of a growing pot placed above the nutrient holding pot (approx. 20 Litre working capacity). It works in exactly the same way as the Aquafarm, except it's bigger. The Waterfarm has an air pump that pushes solution up to the clay pebble filled growing pot via a nutrient delivery tube, and distributes it evenly over the surface. The solution then drains through the clay pebbles and over the roots of your plant and down into the reservoir below to be re-circulated. The reservoir is topped up every couple of days and the solution renewed every week. Easy to use system and ideal for mother plants.