Rain Bird a22470 Root Watering System 18 in Tube

Product Description

The RAIN BIRD a22470 is a mini root watering system (RWS-M) designed to deliver water, oxygen, and nutrients directly to tree and shrub root zones, bypassing compacted soil that blocks surface irrigation. It includes an 18-inch tube, a 0.25 GPM bubbler check valve, and a 4-inch grate. The patented basket weave canister installs to a depth of 18 inches, placing moisture exactly where root systems can absorb it. This unit is intended for use with water-dispensing devices such as bubbler heads or drip emitters. Licensed irrigation technicians and landscape contractors are the primary installers.

The a22470 is suited for residential and commercial landscape applications where deep root watering is needed for trees and shrubs. It is particularly useful in installations with compacted, clay-heavy, or disturbed soils where surface water runoff or shallow penetration limits effective irrigation. The flush-mount 4-inch grate keeps the installation low-profile and mow-safe, making it appropriate for turf areas and manicured landscapes. It supports deep root development that reduces long-term water demand and strengthens plant investment.

Key Features

• 18-inch tube depth delivers water directly to the root zone of trees and shrubs
• 0.25 GPM bubbler check valve controls flow and prevents backflow
• Patented basket weave canister allows water, oxygen, and nutrients to disperse into surrounding soil
• 4-inch grate provides a flush, mow-safe surface finish
• Compatible with standard bubbler heads and drip emitters
• Promotes deep root growth to improve drought tolerance and landscape longevity

Compatibility

Designed for use with bubbler heads and drip emitters in residential and commercial irrigation systems requiring subsurface root zone watering for trees and shrubs.

Installation Notes

Installation is typically performed by licensed irrigation contractors or landscape professionals. Shut off the irrigation system and relieve line pressure before connecting to the supply line. Excavate to the required depth of 18 inches before setting the canister to ensure proper placement in the root zone. Follow local irrigation codes and manufacturer guidelines for emitter flow rate compatibility.