Orbit 37772 Installation Guide download pdf (Page 10)

You'll need to select a location for your main shut-off valve and the best location for the

prinkler valve manifold.

Main Shut-Off Valve

he Main Sprinkler Shut-Off valve is the valve that shuts off water to the entire sprinkler

ystem. Connection to the main water supply is “downstream” of your water meter. Mark

the location on your plan.

Valve Manifold Location

One valve will be used for each zone. Valves that are grouped together are called a manifold.

It’s common to install one manifold in the front yard and one in back.

Mark the Location on Your Plan

Tip: The valve manifold(s) should be installed in an accessible location, away from heavy foot traffic, where it is easy to operate

and service. It's also a good idea to locate the manifold on elevated ground, to avoid water accumulating around the valves.

Plan Backflow Prevention

A backflow prevention device is used to stop foreign material from siphoning back into the

main water supply. The local code information you gathered from your water district should

include the type of device to install and where and how it should be installed. Plan a location

for your backflow prevention device and draw it on your layout.

Thr

ee common types

Note: For certain Canadian areas Dual Check Valves are used

Planning & Design

Sprinkler System Layout & Installation Guide

PLAN VALVE PLACEMENT

WATER

METER

MAIN SPRINKLER

HUT-OFF VALVE

TO HOUSE

MAIN LINE TO

EAR MANIFOLD

ATER METER

AIN LINE

FRONT

ALVE

MANIFOLD

Pressure Vacuum Breaker

Automatic Anti-Siphon V

alve

Double Check

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Orbit 37772 Installation Guide Page 10