DIG GF100 User manual

INTRODUCTION
Thank you for purchasing the DIG’s Model GF100 Gravity Feed Drip Irrigation Kit. Please take the time to
read through the enclosed instructions and follow them step by step. If you have any questions, please call
our customer service line at 1.800.344.2281.
ABOUT YOUR GF100 KIT
Let your landscape thrive with a slow and precise drip watering kit that connects to a gravity feed barrel
or to an outdoor faucet. DIG’s GF100 kit is a complete kit designed for a low-pressure gravity feed system
for up to 50 plants. The kit includes all the parts needed to install a drip irrigation system to water roses,
vines, shrubs or vegetables, starting from a raised rain barrel with a 3/4″hose thread outet. The kit can also
be used from a garden faucet using the included pressure regulator. Use the following guidelines to design
and install an efcient low-volume irrigation system from a rain barrel that conserves water and promotes
a healthy environmment.L
AMPLE
INSTALLATION
Before you start:
The GF 100 Gravity Feed Drip Irrigation Kit contains all the parts necessary to install a drip system that
starts from a rain barrel or outdoor faucet. Select a 60- to 200-gallon rain barrel (not included) and raise
it above the ground for best results. All of the included threaded ttings are “hose” type, so no Teon tape
is needed to seal the connections, and they should be tightened clockwise until they are only “hand tight”.
The 1/2″poly tubing serves as the main supply line which starts from the faucet at the bottom of the
rain barrel.
DIG CORPORATION THREE-YEAR WARRANTY
DIG CORPORATION warrants these products to be free from defects in material and workmanship for a period of
three years from date of purchase. This warranty does not cover damage resulting from accident, misuse, neglect,
modication, improper installation or subjection to line pressure in excess of 50 lbs. per square inch. This warranty shall
extend only to the original purchaser of the product for use by the purchaser. This warranty shall not cover batteries
or any malfunction of the product due to battery failure. The obligation of DIG CORPORATION under this warranty is
limited to repairing or replacing at its factory this product which shall be returned to the factory within three years after
the original purchase and which on examination is found to contain defects in material and workmanship.
DIG CORPORATION SHALL IN NO EVENT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY
KIND; THE SOLE OBLIGATION OF DIG IS LIMITED TO REPAIR OR REPLACEMENT OF DEFECTIVE PRODUCTS. SOME
STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
Unattended use for prolonged periods without inspection to verify proper operation is beyond the intended use of this
product, and any damage resulting from such use shall not be the responsibility of DIG CORPORATION. There are no
warranties which extend beyond the description on the face hereof. In the case of purchase of the product for use other
than, for irrigation purposes, DIG CORPORATION hereby disclaims any implied warranties including any warranties of
merchantability and tness for a particular purpose. In the case of the purchase of the product for personal, family or
household purposes, DIG CORPORATION disclaims any such warranties to the extent permitted by law. To the extent
that any such disclaimer or implied warranties shall be ineffectual, then any implied warranties shall be limited in
duration to a period of one year from the date of the original purchase for use by the purchaser. Some states do not
allow limitation on how long an implied warranty lasts, so the above limitation may not apply
to you. In order to obtain performance under this warranty, the unit must be returned to the factory, along with proof of
purchase indicating original date of purchase, shipping prepaid, addressed as follows:
DIG CORPORATION, 1210 Activity Drive, Vista, CA 92081. Repaired or replaced units will be shipped prepaid to the
name and address supplied with the unit returned under warranty. Allow four weeks for repairs and shipping time.
Repair of damaged units not otherwise within warranty may be refused or done at a reasonable cost or charge at the
option of DIG CORPORATION. This warranty gives you specic legal rights, and you may also have other rights which
vary from state to state.
INSTALLATION INSTRUCTIONS
Gravity Feed
Drip Irrigation Kit
Model GF100
www.digcorp.com
[email protected]
1210 Activity Drive
Vista, CA 92081-8510
Printed in the USA. We at DIG strongly believe in conservation.
Please recycle whenever possible. 082118 REV A 26-035
1.800.322.9146 FAX: [phone]
CONTENTS
(50) 1-GPH Button Drippers
part# W221B
(4) 1/2″Compression Tees
part# C35
(1) 1/2″Compression Coupling
part# C33
(4) 1/2″Compression Elbows
part# C36
(5) Hose End Figure “8”
part# F68B
(10) 1/2″Tubing Holder Stakes
part# R60
(10) 1/4″Barbs
part# H80A
(10) 1/4″Tees
part# H82A
(20) 1/4″Stakes
part# P33B
(10) Goof Plugs
part# G79B

Barrel faucet connections:
Begin the installation at the rain barrel by turning the 3/4″Y hose
end splitter (optional) onto the male threads of the rain barrel faucet.
Then, connect the 3/4″ plastic screen lter with FHT (#D57A) to one
of the splitter outlets; if the splitter is not used, connect the lter
directly to the rain barrel faucet. Next, force the end of the 1/2″poly
tubing into the 3/4″swivel adapter, and then connect the swivel
adapter to the lter outlet by turning it clockwise until hand tight.
Note: If you are connecting this kit to a conventional pressurized outdoor
faucet, install the included pressure regulator (#D46) onto the Y screen-
lter outlet
Drip tubing layout:
Before installing the 1/2″poly tubing, uncoil the roll and lay it out
in direct sunlight (if possible) for 30 to 40 minutes. This will make it
more pliable and easier to work into the compression ttings during
installation.
Lay out the 1/2″ poly tubing and run it next to as many plants as
possible. Secure the tubing to the soil with the
1/2″drip tubing stakes. Install the drip tubing in a
gentle S curve to allow for contraction of the 1/2″
tubing at low to high temperatures.
Connect the 1/2″ drip ttings
Use 1/2″tees (part #C35) and elbows (part #C36) throughout the
layout as needed. To install the 1/2″ compression drip ttings, cut
the drip tubing with a hand pruner, being careful to keep dirt from
entering the line. Hold the tting in one hand and the drip tubing in
the other and force the drip tubing into the compression tting by
moving it from side to side.
Note: Open the faucet on the rain barrel and ush out the poly drip
tubing through the ends before installing the drip emitters.
Drip emitter installation:
The drip emitters can be installed along the poly drip tubing at
varying or specic spacings, depending on the layout of the plants. To
ensure high uniformity, take care not to exceed the recommendations
provided in the chart and the kit specications. Drip emitter ow rate
performance will depend on the rain barrel elevation.
To install the drip emitters, use one of the below options:
Option 1: Installing the drip emitters into the 1/2″poly tubing
Insert the drip emitters directly into the 1/2″tubing: Punch a hole
into the side of the poly tubing using the small punch (part #D44).
Snap the barbed side of the drip emitter into the hole after the lines
have been ushed.
Option 2: Installing the drip emitters into the 1/4″micro tubing
Extend the drip emitters using 1/4” micro tubing to reach plants
that are not near the 1/2″poly tubing. First, run a length of micro
tubing from the 1/2″poly tubing to the plant and cut it. Then, insert
a 1/4″barbed connector (part #H80A) into the micro tubing. Punch a
hole into the 1/2″poly tubing and insert the 1/4″barb into the poly
tubing. At the other end of the micro tubing, insert the barbed side
of the drip emitter after the lines have been ushed. Add a stabilizer
stake and secure to the ground.
Initial system start-up
Turn the water on again, ush the line[s], this will ush out any dirt
or debris that may be in the line. Close the end of the poly tubing
with the gure “8” hose end (part #F68B).
Test and inspect the system to identify if there are any leaks in the
drip tubing laterals. If there are any leaks from the barbed ttings or
drip emitters, remove the tting or drip emitters and insert a goof
plug to close the hole. Reinsert the barb tting or drip emitter nearby.
SPECIFICATION
• Operating pressure: 2 to 15 PSI
• Drip emitter ow rates: .5 GPH at 5 PSI,
.8 GPH at 10 PSI, and 1 GPH at 15 PSI (nominal)
• Drip emitter inlet size: 1/4″barb
Rain
barrel
size
Barrel height
above the
drip sytem
Outlet
pressure
Dripper
ow rate
Length
1/2″drip
tubing
# of
drippers
Total ow
rate per 50
drippers
Total ow
rate per 50
drippers
Avg.
barrel
time to
empty
60 gal.
227 L
5 ft 2.16 PSI 0.33 GPH Up to 60 ft 50 16.5 GPH .28 GPM 3.6 h
1.5 m .15 bar 1.25 L/H Up to 18 m 50 62.4 L/H 1.04 LPM 3.6 h
60 gal.
227 L
10 ft 4.33 PSI 0.43 GPH Up to 70 ft 50 21.5 GPH .36 GPM 2.8 h
1 m .30 bar 1.62 L/H Up to 21 m 50 81.4 L/H 1.26 LPM 2.8 h
60 gal.
227 L
20 ft 8.66 PSI 0.72 GPH Up to 80 ft 50 36 GPH .60 GPM 1.67 h
6 m .60 bar 2.7 L/H Up to 24 m 50 136 L/H 2.27 LPM 1.67 h
ABOUT THE GRAVITY FEED SYSTEM
In gravity feed systems, raising the rain barrel above the drip system will allow the system to gain
pressure. For every 1′(30 cm) of elevation above the drip system there is a gain of .433 PSI (.030 bar). If
the rain barrel is raised 10′(3 m) above the drip system, there is a pressure gain of 4.33 PSI (.30 bar) at
the rain barrel bottom or outlet (.433 x 10 = 4.33).
Keep in mind that low pressure such as 4.33 PSI (.30 bar) or less in a drip system will lead to:
1. Limited distance to the layout of the 1/2″or 1/4″drip tubing.
2. Reduction in the drip emitters’ ow rate to considerably below the specied nominal ow rate.
3. A drastic drop in uniformity once a certain length is exceeded.
• Drip emitter outlet side: nipple
• Poly tubing length & size: 100′of
1/2″with .600″ ID x .700″OD
• Micro tubing length & size: 50′ x 1/4″
• Total ow rate for this kit: 32 GPH (.53 GPM)
CONTENTS
(1) 100′of 1/2″Black Poly Tubing
with .600″ ID x 700″OD
part# B36
(1) 50′of 1/4″Black Micro Tubing
with .170″ ID x 250″OD
part# B38P
(1) 3/4″Y Hose End Splitter
part# D52
(1) Hole Punch
part# D44
(1) 3/4” Filter with FHT x MHT
part# D57A
(1) 3/4″ MPT x MHT Nipple
part# D49
(1) 3/4″Faucet Adapter
part# C34
(1) 3/4″Pressure Regulator
part# D46
D52
D57A
C34
D46
3/4” Pressure
Regulator