Installation Guide
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YOUR DRIP IRRIGATION GUIDE
DIG CORPORATION
Eortlessly connect to your drip
system with DIG’s versatile solutions,
accommodating hose bibs, anti-siphon
valves, inline valves, sprinkler head
risers, or rain barrels for gravity feed
systems. At the crucial connection
point, the essential “head assembly”
includes a screen or disc filter along
with a pressure regulator. This assem-
bly easily attaches to hose bibs (hose
thread types) or connects to manual or
automatic valves (pipe thread types).
The head assembly: 1 Backflow device, \2 FHT Filter, 3 Pressure regulator, 4 swivel adapter, 5 poly tubing
Seamless
Drip System
Connections:
The head assembly
Adhering to local codes, certain water districts may require a backflow preventer or anti-si-
phon device. The recommended backflow device prevents contaminated water from re-en-
tering the water supply. If using an atmospheric vacuum breaker, install it on the hose bib
(hose thread) at the head assembly’s start. For those incorporating a hose end timer, place
the backflow device downstream to meet requirements and prevent device stress.
Protect drip emitters and micro sprinklers by installing the filter downstream of the backflow
device. The pressure regulator, whether preset or adjustable, comes aer the filter, reducing
incoming pressure for optimal system performance. Consider the option of a one-piece,
compact, pressure-regulating filter for added convenience.
The head assembly: D45 Backflow preventer, D57A FHT filter,
D46 pressure regulator, C34 Swivel adapter, tubing.
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