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RC-020 IC US 1/17

For Existing Tree Installation

INSTALLATION STEPS
1.  IMPORTANT: If the model includes a 

Hunter Swing Joint, simplify installation 
by threading the tee or elbow fitting 
onto the swing joint prior to attaching 
to the lateral line (Fig. 1).

2.  After placing the tree or shrub in a 

prepared planting hole, space the 
RZWS units evenly around the root ball 
and flush with finished grade. Each tree 
or shrub should have a minimum of two 
RZWS units (Fig. 2). 

3.  For RZWS models sold without  

internal hardware, add irrigation 
hardware as needed.

4.  Attach each unit to the lateral  

line system.

5.  Backfill the hole around RZWS units. 

In sandy soils, use a fabric filter sleeve 
to prevent soil infiltration. Hunter part 
number: RZWS SLEEVE.

6.  Follow planting guidelines for specific 

tree species, and for local conditions.

INSTALLATION STEPS

1. 

Dig holes to desired diameter and 
depth. Each hole should 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. Each tree should have a 
minimum of two RZWS units.

3.  For RZWS models sold without  

internal hardware, add irrigation 
hardware as needed.

4.  Attach each unit to the lateral  

line system.

5.  Backfill the hole around RZWS units. 

In sandy soils, use a fabric filter sleeve 
to prevent soil infiltration. Hunter part 
number: RZWS SLEEVE.

6.  Follow planting guidelines for specific 

tree species, and for local conditions.

Note: 

To service the RZWS, use a tool 

to access and release the two snaps 
from the cap (Fig. 4).

Fig. 1

RZWS SERIES

 

ROOT ZONE WATERING SYSTEM

 

INSTALLATION INSTRUCTIONS

Fig. 3

Fig. 4

Edge of  
Canopy

Halfway 
Point

New Root Growth Area

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Need help? Visit

 hunter.direct/rzwshelp

For New Tree or Shrub Installation

Fig. 2

Snaps

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