Growonix GX400 User manual

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GX300/GX400
Owners Manual
www.growonix.com

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OUR MISSION
Durability, Reliability, Eciency, Purity, and Conservation form the foundation on which we design
and build all of our products. Consistent and superior quality sets us apart from other manufacturers
and increases our value to you - our customer. Whether you are a hydroponics hobbyist, serious
enthusiast, or large-scale gardener, GrowoniX is committed to bringing you the best solution for
water purication systems.
WHAT IS REVERSE OSMOSIS?
Reverse osmosis (RO) is a ltration method that removes many types of large molecules and ions
from solutions by applying pressure to the solution when it is on one side of a selective membrane.
This ltering process ensures that the solute (waste water) is contained within the pressurized
chamber while the pure solvent (RO water) is allowed to pass freely through the membrane.
TUNED FOR GROWING - IN TUNE WITH OUR CUSTOMERS
Traditional RO systems have waste ratios of approximately 4:1, which means there are 4 gallons
of waste water produced for every 1 gallon of puried water. GrowoniX line of water lters achieve
waste ratios of 2:1 with the EX100 through GX400 and an astounding 1:1 ratio with the GX600 and
GX1000.
GrowoniX has created a complete product line that will address the needs of hydroponic operations
of all sizes. Our lters will signicantly reduce your water use while dramatically increasing your yields.
INTRODUCTION
THE TRADITIONAL WAY
takes 4 gallons of waste water to produce 1 gallon of pure water
THE GrowoniX WAY

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FLOW RATES
600GPD—1000GPD FILTER FLOW RATES
WATER PRESSURE (PSI) WITH OR WITHOUT PUMP
2400
2600
2800
EX/GX1000-HF, 77ºF
EX/GX1000-HF, 60ºF
EX/GX1000-HF, 50ºF
EX/GX600-HF, 77ºF
EX/GX600-HF, 60ºF
EX/GX600-HF, 50ºF
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
GALLONS PER DAY
40 50 60 70 80 90 100 110 120 130 140 150 160 170 180
100GPD—400GPD FILTER FLOW RATES
WATER PRESSURE (PSI) WITH OR WITHOUT PUMP
600
550
500
450
400
350
300
250
200
150
100
50
0
EX/GX200-HF, 50ºF
EX/GX200-HF, 60ºF
EX/GX200-HF, 77ºF
EX/GX400-HF, 60ºF
EX/GX400-HF, 77ºF
EX/GX400-HF, 50ºF
EX100-HF, 50ºF
EX100-HF, 60ºF
EX100-HF, 77ºF
40 45 50 55 65 7560 70 80
GALLONS PER DAY

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INFORMATION ON QUICK CONNECT FITTINGS
INSERT TUBE INTO FITTING
Push the tubing through the collet and dual o-rings until it bottoms out against the tube stop.
The collet holds the tube in place and the dual o-rings provide a leak resistant seal.
MAKE A CLEAN TUBE CUT
Cut the tube squarely and if using plastic tubing, ensure that the cut has not made the tube out of round.
Also ensure that the tube has a smooth outside diameter without any burrs or score marks
prior to inserting it into the tting.
TEST AND INSPECT
Push and pull the tubing toward and away from the tting to ensure that it has been installed properly.
Test and inspect the installation for any leaks.
TUBE REMOVAL
Relieve pressure from the tubing and tting. Push uniformly around the collet ange against the
tting body while pulling the tubing away from the tting to release it.
O-RING
COLLET
TUBING
PUSH COLLET IN
PULL TUBE OUT
GROWONIX WATER FILTERS USE QUICK CONNECT FITTINGS
THAT ALLOW FOR EASY MAINTENANCE.

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w/HIGH FLOW
MEMBRANE
tuned for growing
tm
GX300/GX400
2:1 WASTE RATIO
FEATURES:
150 GALLONS PER DAY / 200 GALLONS PER DAY
6.25 GALLONS PER HOUR
2:1 WASTE RATIO
GX150HR - DOW CHEMICAL MEMBRANE
GX200HF -HIGH FLOW COLD WATER
MEMBRANE
HIGH FLOW WASHABLE SEDIMENT FILTER
CLEAR FILTER HOUSINGS
STAINLESS STEEL LIQUID FILLED
PRESSURE GAUGES
PATENTED METAL HOUSING
AUTO SHUTOFF VALVE
EZ HOOKUP KIT
WALL MOUNTABLE
USES 50% LESS WATER THAN TRADITIONAL
RO SYSTEMS
THE GX300
When we developed the GX300, we decided to pack all the high end features into a tight ecient RO
unit. We engineered a 50% increase in water production over traditional ROs, lowered the waste ratio to
2:1, and still oered it to you for the same price point of an entry level RO lter. But we didn’t stop there.
We topped it all o with a 2” stainless steel liquid-lled pressure gauge, never before seen in a lter this
size, and integrated it into our patented GX Series bracketing system. A manual ush valve allows you
to clean the membrane, purging out pollutants that could otherwise add buildup to the system. Flushing
adds considerable life to the membrane. With ow rates at 6.25 GPH (Gallons Per Hour), the GX200HF
delivers the same excellent ltration as our larger models.
Built in the U.S.A.
No Assembly Required
MEMBRANE FLUSH KIT INCLUDED
NO ADDITIONAL PRE-FILTERS NEEDED

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PRECAUTIONS
• Do not use unit with inlet water pressure exceeding 80 psi. If inlet water pressure is too high,
install water pressure regulator before the unit. Regulators and pressure limiters are available at
www.Growonix.com or your local plumbing supply.
• Keep unit away from direct light.
Direct light can cause algae and other biologicals to grow inside of the lter housings.
• Do not install unit near electrical outlets or electrical devices.
• Do not install in places where a leak can cause damage.
• GrowoniX EX Series RO water lters are rated using supply water that is 77°F, 475ppm, at 70psi.
Slower performance may be noted in areas with colder temperatures, higher water salinity, or
lower inlet water pressure.
• A minimum of 40psi is recommended to operate GrowoniX water lters. If your inlet water
pressure is too low, booster pumps can be used to increase pressure.
Pumps are available at www.Growonix.com.
• Do not use a ow restrictor other than the one included with your unit.
• Flow restrictors help tune the unit for proper waste ratio.
• Using bigger ow restrictors, or using the unit in areas with exceptionally dirty water,
will decrease membrane performance and longevity.

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3 2
GX300 COMPONENT DIAGRAM
12
13 14
15
16
1. Patented GX mounting bracket
2. Sediment lter
3. Carbon lter
4. RO membrane
5. Pressure gauge
6. Supply water in
7. RO water out
8. Waste/drain tubing
9. Flow restrictor
10. Membrane Flush Valve
11. Auto shuto valve
12. Drain saddle clamp
13. In line shuto valve
14. Filter wrench
15. Supply, RO, and drain tubing
16. Garden hose adapter
1
5
4
4
6
7
11
10 9
8

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Connect the 1/4” blue drain tubing to the
tee tting just after the ow restrictor.
IMPORTANT TIPS:
• The GX300HR and GX400HF water lters are designed to be used with between 40-80 psi of incoming
water pressure.
• Units upgraded with High Flow Membranes can work with as low as 20 psi of incoming water pressure.
• Do not exceed 80 psi of incoming water pressure.If incoming water pressure is too high,
install pressure regulator before unit.
• Pressure regulators are available at www.GrowoniX.com
• Always turn incoming water pressure on slowly,
allowing all air to be discharged before full water pressure is restored.
Connect 3/8” white supply tubing to
the inlet tting, making sure inlet seats
all the way in quick-connect tting. This
is the supply water line.
Connect 1/4” white RO tubing to the auto
shut-o valve, making sure RO tubing
seats all the way in quick-connect tting.
This is the ltered RO water out line.
Mount drain clamp to available drain
pipe. Connect other end of drain tubing
to included drain clamp.
1
3
2
4
SETUP INSTRUCTIONS

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FLUSHING THE KDF85 CARBON FILTER
Make sure incoming feed water is
shut o, ensuring the RO lter is
depressurized.
Disconnect the 1/4” white tubing that
feeds the membrane input from the
carbon lter.
Position tting over drain or bucket and
slowly turn on incoming water pressure.
Allow ten gallons of water to ush through
carbon before reconnecting to membrane
input.
1 2
Growonix GX600 and GX1000 water lters come with a manual ush valve. Flushing the membrane
element after each use for approximately 3-5 minutes will remove standing salts from the membrane,
signicantly extending membrane life. Even weekly ushes will improve membrane life and system
performance.
The ush valve is located on the waste line of the RO membrane. To ush the membrane simply
turn the ush valve to the FLUSH position as seen in picture 1. High-pressure water will bypass the
ow restrictor and shuto valve and be sent down the drain, carrying membrane pollutants with it. If
using a oat valve and the system happens to be OFF due to valve engagement, opening the ush
valve will start the system again in ush mode, and the membrane will be cleaned.
DISCONNECT TUBING
FROM PUMP INPUT
OR MEMBRANE INPUT
AND FLUSH 10 GALLONS
THROUGH
KDF CARBON FILTER
WARNING
MAKE SURE WATER IS FREE
FROM CARBON FINES & DEBRIS
BEFORE RECONNECTION
TO MEMBRANE INPUT

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1
3
2
4
REPLACING SEDIMENT AND CARBON PRE-FILTERS
Unscrew sediment and carbon lter
housings using supplied lter wrench.
Wash inside of lter housings to
remove debris.
When replacing lter housings, make
sure housing O-rings are seated
properly. O-rings function best when
lubricated with food grade silicone
lubricant.
Install new sediment and carbon lter,
making sure they go into the correct
lter housings.
IMPORTANT TIPS:
• Pre-lters should be changed when either brown discoloration occurs,
or system ow rates have signicantly declined.
• Always turn incoming water pressure o before servicing the unit.
• Always turn incoming water pressure on slowly,
allowing all air to be discharged before full water pressure is restored.
Sediment Carbon
Tighten lter housings by hand,
do not use lter wrench. Do not over
tighten.

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REPLACING MEMBRANE ELEMENT
2
4
3
1
5
Disconnect input tubes from RO
membrane housing.
Unscrew membrane housing end cap.
Caps can be dicult to remove. Be sure
to have a rm grip on opposite side of
housing . Do not lose O-ring on inside of
cap. Each cap has two O-rings.
Pull out membrane using needle nose
pliers or other similar tool.
Insert new membrane into housing,
making sure the membrane-end with
the brine seal goes in last. Make sure
membrane is completely seated in the
housing.
Replace end cap and tighten by hand.
If O-rings are dry, lubricate with food
grade silicone lubricant. Allow system
to run for ½ hour before using RO
water.
IMPORTANT TIPS:
• Membranes should be
replaced when system output
signicantly declines. Note:
system output may decline
due to other factors as well
(SEE: TROUBLESHOOTING)
Input tube
Brine Seal

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FLUSHING THE MEMBRANE ELEMENT
1 2
Let system run for 3-5 minutes.
After ushing is complete, simply turn ush
valve to OFF position. Membrane has been
ushed.
3
Make sure valve is open
(in the ON position).
ush position
closed position
(RO on)
GrowoniX water lters come with a manual ush valve. Flushing the membrane element after each
use for approximately 3-5 minutes will remove standing salts from the membrane, signicantly
extending membrane life. Even weekly ushes will improve membrane life and system performance.
The ush valve is located in the waste line of the RO membrane. To ush the membrane simply turn
the ush valve to the FLUSH position as seen in picture 1. High pressure water will bypass the ow
restrictor and shuto valve and be sent down the drain, carrying membrane pollutants with it. If using
a oat valve, and the system happens to be OFF due to valve engagement, opening the ush valve
will start the system again in ush mode.

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SPECIFICATIONS CHARTS
PLEATED SEDIMENT FILTER
2.5 “ DIAMETER
Materials of Construction:
• Filter Media
• End Caps
• Core
• Temperature Rating
• Non-woven Polyester
• Vinyl Plastisol
• Polypropylene
• 40˚F to 125˚F (4.4˚C to 51.7˚C)
Size Description:
• 2.5” X 9 7/8”
Initial AP(psi) @ ow rate (gpm):
• 1 psi @ 10 gpm(.01 bar @ 38 L/min)
ECO COCONUT CARBON BLOCK FILTER
Materials of Construction:
• Carbon: NSF listed 61, Coconut Shell PAC
• End Caps: Polypropylene
• Inner/Outer Wraps: Polypropylene
• Nettings: Polypropylene
• Gaskets: NBR
• Temperature Ring: 40˚F to 180˚F
•
OD X Length:
• 2-3/4” X 9-3/4”
Nominal UM Rating
• 10
Initial AP(psi) @ ow rate (gpm):
• 1 PSI @ 30 GPM
Chlorine, Taste, Odor
Reduction Capacity Flow
• >8,000 gallons @ 1 GPM
PARTICLE SIZE (MICRONS)
PERCENT EFFICIENCY*
RO MEMBRANE ELEMENT
Operating Limits:
• Membrane Type:
Thin lm composite
• Maximum Operating Temperature:
110˚F (45˚C)
• Maximum Operating Pressure:
125 PSI
• Maximum Feed Flow Rate:
1 GPM
• Maximum Concentrate Flow Rate:
4 x Permeate
• pH Range, Continuous Operation:
3-11
• Maximum Feed Water Turbidity:
1 NTU
• Maximum Feed Silt Density Index (SDI):
5 SDI
• Chlorine Tolerance:
0 PPM
• Applied Pressure PSI (BAR):
65 (4.48)
• Permeate Flow Rate GPD:
150
• Nominal Salt Rejection(%):
98%

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GROWONIX REVERSE OSMOSIS SYSTEM WARRANTY
For a period of one year from the date of original purchase, we will replace or repair any part of the GrowoniX
reverse osmosis water system that we nd to be defective in operation du e to faulty materials or workmanship
with the EXception of the replaceable lters and membranes.
GENERAL CONDITIONS
Damage to any part of this reverse osmosis system because of misuse; misapplication; negligence; alteration;
accident; installation; or operation contrary to our instructions, incompatibility with accessories not installed
by GrowoniX, or damage caused by freezing, ood, re, or Act of God, is not covered by this warranty. In all
such cases, regular charges will apply. This limited warranty does not include service to diagnose a claimed
malfunction in this unit. This warranty is void if the claimer is not the original purchaser of the unit or if the unit
is not operated under normal municipal water or well water conditions.
GrowoniX assumes no liability in connection with this reverse osmosis system. GrowoniX assumes no liability
for any damages incurred through the use of this product. It is the responsibility of the end user to gauge the
safe use of this product in the environment where it is applied. We do not authorize any person or representative
to assume for us any other obligations on the sale of this reverse osmosis system. The information given out
in the manual we believe to be true, but are oered to you in good faith without guarantee because each
application of this product is dierent and beyond our control.
THE FOLLOWING STANDARD OPERATING CONDITIONS FOR RESIDENTIAL/COMMERCIAL REVERSE
OSMOSIS SYSTEMS MUST BE MET FOR WARRANTY TO BE VALID.
Water Pressure pH Range Maximum TDS Water Temp
Standard System 40-80 psi 2-11 2000 ppm 40-100 F
GROWONIX RETURN POLICY
MERCHANDISE RETURN DETAILS AND PROCEDURE:
If any merchandise was defective —we will refund the full purchase price upon receiving and reviewing the
merchandise returned in undamaged condition.
RMA NUMBER:
You must rst obtain a Return Merchandise Authorization (RMA) number from GrowoniX.com. Any products
sent to GrowoniX without an RMA number will not receive a refund and may be returned to the sender at their
expense.
All refund amounts will be based on the manufacturer’s warranty and GrowoniX return policy. Refunds will be
issued back using the payment method you used when you placed your order. Refunds take up to 3-5 business
days to process once we receive the return.
PACKAGING:
Please kindly re-pack the product in its original box, or a box of equivalent strength. The unit should be packed
in the same manner as it came to prevent damage in shipping. Please return everything that was in the original
box, including any free items if applicable. Be sure to drain out all water from wet systems and parts and wrap
them in plastic bags before packing.
RETURN TO:
We will provide you with an GrowoniX warehouse address for return merchandise when we issue the RMA number.