$45 · Indoor Watering System purchased from Lee Valley

Description from Lee Valley catalogue - Ideal for the absentee plant owner, this watering system keeps up to 20 plants watered for up to 40 days. It's also suitable for use in the greenhouse where growth success is dependent on a continuous, measured supply of water. Powered with a single 9V battery that you supply, the timer has four program settings that let you set the water valve to open twice daily to deliver a total of 120ml (4 oz), 60ml (2 oz), 40ml (1.5 oz) or 30ml (1 oz) of liquid per emitter per day. The kit includes a 24l (6.3 U.S. gal.) durable plastic reservoir, 10m (33') of hose, and enough spikes and drippers to accommodate 20 individual plants. More than one emitter can be used for plants with greater watering requirements. Reservoir measures 13" square. A convenient, efficient method for keeping plants healthy. .