Root Zone Watering System Installation Instructions

For new tree or shrub installation:

Installation Steps:

1. IMPORTANT: Most models in the RZWS product line include a Hunter Swing Joint. To simplify installation, thread the tee or elbow fitting onto the swing joint prior to attaching to the lateral line (Fig. 1).
2. After placing tree or shrub in prepared planting hole, place RZWS units evenly spaced around root ball and vertically flush with finished grade. A minimum of two RZWS units is recommended per tree or shrub (Fig. 2 - see below).
3. For RZWS models sold without internal hardware, add irrigation hardware as needed.
4. Attach each unit to lateral line system.
5. Back fill hole around RZWS units. A filter fabric sleeve is recommended for sandy soils to prevent soil infiltration. Hunter part number: RZWS Sleeve.
6. Follow planting guidelines for specific tree species, and for local conditions.

For existing tree installations:

Installation Steps:

1. Dig holes to desired diameter and depth. It is recommended that each hole be a minimum of 5 inches in diameter and the required depth to allow the RZWS unit to be installed flush with finished grade. RZWS units may be cut to depths not specifically offered.
2. Place units evenly spaced around the tree, located at half the distance between the trunk and the edge of the tree canopy (Fig. 3). The required RZWS units will vary with tree watering requirements. A minimum of two RZWS is recommended per tree.
3. For RZWS models sold without internal hardware, add irrigation hardware as needed.
4. Attach each unit to lateral line system.
5. Back fill hole around RZWS units. A filter fabric sleeve is recommended for sandy soils to prevent soil infiltration. Hunter part number RZWS Sleeve.
6. Follow planting guidelines for specific tree species, and for local conditions.