A large reservoir that fits snuggly in the bottom of the small wallhugger VegTrug, the water is then drawn from the reservoir up directly into the plant roots. This gives the best results as it allows crops to draw water up at their own pace and eliminates the risk of overwatering. A water level indicator means you can see when more water needs to be added and a connected tube funnel that sits above the soil makes it easy to top up water or fertilizer. Manufactured from strong and durable plastic this is built to last and is the perfect accessory to pair with the VegTrug. - How Does This Reservoir Work? The Self watering Kit sits at the bottom of your VegTrug Planter under the compost. The water is then drawn from the reservoir up - directly into the plant roots. This allows for the best results, as the crops are able to draw water at their own pace, and therefore eliminates the risk of over-watering.