Microsprinklers

Microsprinklers are a category of low-volume irrigation devices that discharge water through a small sprinkler head connected to a network of tubing. They are designed to deliver water in a short-range spray or through a rotating head, typically covering a radius of about 2 to 8 feet, at flow rates of roughly 0.5 to 2.0 gallons per minute per head. They are used in landscapes, nursery beds, greenhouses, and container plantings to apply water directly to the root zone with minimal overspray.

Most microsprinklers operate at low pressure and are installed on or just above the soil surface or on mulch beds. They come in fixed patterns, such as full-circle or half-circle spray, and in adjustable or rotating forms. They are often paired with inline filters and pressure regulators to prevent clogging and ensure uniform distribution.

Applications include outdoor landscape beds, tree rings, greenhouse benches, and container plantings where even coverage is needed and the soil is prone to evaporation. They are often used as part of drip/mist systems and can be integrated with timers or soil-moisture sensors to optimize water use.

Advantages include higher uniformity in small to medium areas, reduced water waste compared to broad-spray sprinklers, and the ability to target the root zone. Limitations include a propensity for clogging from particulates or mineral buildup, a need for filtration and regular maintenance, sensitivity to wind, and limitations on coverage in windy or very hot conditions.

Installation considerations include selecting the correct emitter flow rate and spray pattern, installing filters and regulators, burying or placing tubing to minimize damage, and winterizing the system in cold climates. Regular inspection, cleaning of nozzles, and seasonal checks help maintain efficiency.