Micro Dripping is an irrigation method that enables a very low flow rate, close to one fifth the flow of ordinary drippers. The nominal flow rate of each Micro Dripper may be as low as 0.2 L/hr and this low flow is resulting with better wetting distribution in the soil. The different wetting patterns are illustrated below.

The slower infiltration in the soil allows the plant to develop a wider roots pack, as illustrated in the left picture. A better matching between the watering rate and the rate of water uptake by the plant is achieved. Waste of water due to drainage below the roots is eliminated and the result is better corps for less water.

Rain-Tal's Micro Drippers are designed for use either with pressure or in gravity systems:

• For pressure systems we offer our Mini Flow Regulator (a regulated master dripper of 2 or 4 L/hr). Its outlet may feed a bundle of Multi Outlet Micro Drippers.
• Gravity Micro Drip system operates under very low pressure of water from a small pool or tank, that generates a hydrostatic pressure of less than 0.1 bar (1m). Water flows from the tank in supply tubes and feed lines to the Micro Drip. A typical system is illustrated below.

The flow in the Micro Drip feed lines ("laterals") is very low, thus the tube diameters may be small. This method is the only solution for zones where water resources are limited or where the water pressure is low due to lack of pumps, electric power or water supply infrastructure.