NATURE LOO CLASSIC 650 User manual

NATURE LOO
CLASSIC 650
INSTALLATION & OPERATION MANUAL
IMNL-009-2024-01-09
©Ecoflo Wastewater Management Pty Ltd

TABLE OF CONTENTS
ITEMS REQUIRED (NOT INCLUDED) 1
TOOLS REQUIRED 1
SCHEMATICS 2
INSTALLATION 3
STEP 1: POSITION THE PEDESTAL 3
STEP 2: POSITION THE WASTE CHUTE 3
STEP 3: INSTALL THE WASTE CHUTE 5
EXTRA LENGTH REQUIRED FOR UNDER-FLOOR AREAS 6
STEP 4: INSTALL THE WHEELS 6
STEP 5: INSTALL THE IN-SERVICE CHAMBER 7
STEP 6: CONNECT THE DWV VENT PIPES AND FAN 8
OPTIONAL EXTRAS 8
STEP 7: CONNECT THE FLEXIBLE VENT PIPE AND LIQUID DRAIN HOSE 9
POWERING YOUR FAN 10
LEACHATE DRAIN 11
COMPOSTING ACCELERATORS 12
STARTING WITH AN EMPTY CHAMBER 13
MAINTENANCE 14
ROTATING THE CHAMBERS 15
TROUBLESHOOTING 17
PRODUCT & COMPONENT WARRANTY 19
MAINTENANCE SCHEDULE 20

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TOOLS REQUIRED
PVC
CEMENT
SILICONE
Marker Tape Measure Shovel Hand Saw
JigsawPlumb BobPVC CementCaulk Gun
Power Drill Philips Drill Bit Masonry and Brad
Point Drill Bits Hole Saw Drill Bit
ITEMS REQUIRED (NOT INCLUDED)
Please check the packing slip to ensure everything has been delivered. If anything is missing, please
notify Ecoflo within 72 hrs of receipt.
You will need the following items to complete your installation.
Vent items
• Wall brackets to fix the vent pipe to the building
• A length of 100mm DWV vent pipe to connect to the air exhaust (length depends on specific
installation)
• Dektite if DWV vent pipe will penetrate the roof
Leachate drain items (please check with your local authority)
• Ø100mm Agricultural pipe
• 1.5m x 0.5m Synthetic or Hessian geotextile mat
• 50mm PVC pipe to connect the hose to the agricultural pipe
• 0.30m³ 20mm Aggregate
A vent kit and drain kit are available to purchase separately from Ecoflo.

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Pedestal
Chute
500mm
In-service
chamber
Fan in housing
Y Juntion
End cap
Vent pipe
Brackets*
100mm DWV pipe*
45° bend*
Dektite*
600mm
600mm
Vent cowl
Camlock fittings
Excess liquid drain hose
Moisture trap
Leachate drain*
SCHEMATICS
If you are planning to excavate an area under the
house for the compost chambers, please ensure
the area is well-drained and any retaining walls
are built to the satisfaction of the local authority.
Vent Installation
Option
*Not included in package
A drain kit and vent kit are available to purchase seperately from Ecoflo.

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INSTALLATION
STEP 1: POSITION THE PEDESTAL
Locate the approximate area where you want the pedestal to go before cutting the hole.
The usual position for pedestals is centred between side walls.
NOTE: Due to the pedestals being man made, the distance to the centre may vary from 245 to
255mm. Please check before cutting the hole.
STEP 2: POSITION THE WASTE CHUTE
A 240mm hole must be cut in the toilet room floor to accommodate the waste chute.
1
Go to the underfloor area and look for the hole
you have drilled. Check to see if there is a floor
joist, water pipe or electrical wiring under the area
you are going to cut.
Following the provided pedestal floor template, mark the location of the centre hole 245-
255mm from the back wall. Drill a small hole.
Back wallSide wall

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If there is a joist in the way, either reposition the waste hole OR install trimmer joists to each end of the
cut joist, and fix all connections with galvanized framing anchors with 4 nails each leg (refer to diagram
below).
View from under floor
Following the pedestal floor template, draw a 240mm diameter circle. Cut out the hole with
a jigsaw.

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STEP 3: INSTALL THE WASTE CHUTE
First ensure the pad or ground level on which the ‘In-service’ chamber will reside is at its final level
beneath the toilet room.
Insert the chute into the hole
12
4
5 6
3
Slide the lid up the chute.
Cut off any excess chute length
20mm below the mark.
Seal and secure the chute to the
floor with silicone. Follow the separate pedestal instruction sheet to install the
pedestal.
Place the chamber in position
and lower the lid. Mark where the
chute meets the hole in the lid.
20mm below

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EXTRA LENGTH REQUIRED FOR UNDER-FLOOR AREAS
If the underfloor height exceeds 900mm (floor-to-floor), you will require additional lengths of chute,
fixed together with small stainless steel self-tapping screws below the flange of the additional waste
chute.
As the chute joints are tapered, the top waste chute must be inserted through the toilet room floor first
with additional waste chutes added from below.
STEP 4: INSTALL THE WHEELS
Attach the wheels to the ends
of the axle and place under the
chamber.

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STEP 5: INSTALL THE IN-SERVICE CHAMBER
Add an even layer of bulking agent to
the chamber, high enough to reach
the bottom of the mixer arm. Slightly
dampen with water.
A rubber seal is supplied for the
‘In-service’ lid to prevent any odour
emitting from the chamber. Slide the
rubber seal up onto the waste chute.
Place the chamber underneath. Lower
the lid onto the chamber. Push the
rubber seal down to cover the slit
between the chute and lid.
Slide the lid up onto the waste chute.
Hook the bungee loops over the knobs
as shown.
1 2
3
5
4
Approx. 50mm
starter bed of
bulking agent

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STEP 6: CONNECT THE DWV VENT PIPES AND FAN
The fan is IP68 rated so will not be effected by moisture. It is recommended that the fan runs 24 hours
a day to continuously circulate air through the compost heap.
Air is drawn down the toilet pedestal through the compost chamber and out the vent pipe.
Do not glue the fan housing to the DWV fittings.
100mm DWV vent kit:
• ø100mm DWV Pipes
• ø100mm DWV Slip Joiners
• ø100mm Stand Off Brackets
• Dektite
OPTIONAL EXTRAS
A vent kit is available to purchase separately from Ecoflo Wastewater Management.
Pedestal
Chute
500mm
In-service
chamber
Fan in housing
Y Juntion
End cap
Vent pipe
Brackets*
100mm DWV pipe*
45° bend*
Dektite*
600mm
600mm
Vent cowl
Camlock fittings
Excess liquid drain hose
Moisture trap
Leachate drain*

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STEP 7: CONNECT THE FLEXIBLE VENT PIPE AND LIQUID DRAIN HOSE
Liquid Drain Outlet
See image 2
Air Vent Outlet
Screw the 50mm MI
connector into here
See image 1
1
2
MI Connector Slotted Pipe
Connector Flexible Vent Pipe
Female
Camlock
Nipple Male Barbed
Camlock Liquid Drain Hose
Dip the ends of the vent
pipe into hot water for
easier insertion of the
pipe connectors.
Dip the end of the hose
into hot water for easier
insertion of the barbed
fitting. Ensure the hose is
pushed entirely onto the
barbed camlock.

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POWERING YOUR FAN
A 120 /12 volt regulated transformer is included to run the fan from mains power. The positive wire
the transformer is marked with a white line. The fan has anti-polarity protection and would not run if
connected incorrectly.
Connect the fans to the transformer as follows:
1
3
5
2
4
6
Unscrew the fan housing cover.
Attach the transformer cables to the
terminal block as shown below.
Pull out the transport spacers.
Insert the fan and fan mesh into the
housing, with the fan mesh on top.
Screw fan cover back onto housing. Test the fan. Airflow should be directed
upwards, towards the top of the fan
housing (see arrow).
Black to black (negative)
Red to black with white stripe (positive)

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LEACHATE DRAIN
A leachate drain kit (not including gravel) is available to purchase separately from Ecoflo Wastewater
Management.
Alternatively, if your council allows, you may wish to construct your own leachate drain. The liquid drain
hose should run into either a 50mm PVC pipe (drilled to allow liquid to escape) OR a length of socked
slotted Ag pipe, buried in an absorption trench as shown in the diagram below.
150mm
230mm
500mm
1200mm
Socked slotted pipe
230 min
150 min
500 min
Leachate drain
Gravel
Geofabric layer
300 min
150 min
450 min
20mm Gravel
ø100mm Agi Drain
Geofabric layer
Agi DrAin
Trench Arch DrAin

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Shop consumables at
ecoflo.com.au/products/consumables
COMPOSTING ACCELERATORS
Whilst users report successful composting without the use of any additives, we strongly recommend
the use of the following items in order to optimize composting, particularly when the toilet is in
permanent use by more than two people.
Bulking AgenT
When starting or restarting with an empty chamber, add a 50mm starter
bed of bulking agent.
This should be added on a regular basis, preferably a handful after each
solid use. Alternatively, if this is not possible, add the equivalent of this
on a daily or weekly basis. The bulking agent can be added through the
pedestal.
For best results use pine wood shavings or hemp bedding (available to
purchase from Ecoflo, or find at your local hardware or pet store).
We do NOT recommend the use of:
• Sawdust - as the small particles can create an anaerobic condition
within the chamber and small particles can disrupt ventilation.
• Cypress, cedar or eucalyptus wood shavings - due to their
antimicrobial properties.
• Sugar cane mulch - as it makes using the mixer difficult. Any excess
sugar leaching into the compost can attract bugs.
liquiD enzymes
Enzymes are a natural detergent, not harmful to the culture of
microorganisms in the compost pile. The enzymes act as catalysts,
breaking down grime and mineral deposits into their basic elements, and
helping to accelerate the composting process. Any stain on the pedestal
can be removed with the solution. Refer to instructions on the bottle.
microBes
Microorganisms aka microbes are the ones doing the composting in your
toilet. Each microbe packet is full of aerobic microbes, actinomycetes
bacteria and fungi which combine with the natural bacteria in the waste
to convert it into nutritious fertile compost. Refer to instructions on packet.

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STARTING WITH AN EMPTY CHAMBER
Before connecting your chamber to the waste chute, add an even 50mm layer of bulking
agent and dampen slightly with water. Complete the installation of the chamber (refer to
Step 5, Install the In-Service Chamber). You can start using your chamber now.
1
After 7 days of use, mix half a packet
of microbes with warm water in a
bowl. Add this to the chamber through
the pedestal. Reseal the packet and
store it at room temperature, out of
direct sunlight.
2Around 14 days later, add the rest of
the packet of microbes mixed with
warm water to the chamber through
the pedestal.
Your system is now fully activated with
live bacteria.
3
Repeat steps 1-3 each time you restart with an empty chamber.
4
50mm of
bulking agent Slightly dampen the
bulking agent with water.

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MAINTENANCE
DAily or Weekly
• Clean rest room and toilet fixtures using only biodegradable cleaners (enzymes)
• Add 1 cup of bulking agent to toilet after every solid use.
monThly
• Inspect the ‘In-service’ chamber. Depending on usage, prepare an empty chamber for use once
the chamber becomes full.
• Check vent pipe and remove any foreign matter.
• Check the fan is operating.
• Check that the system is draining correctly.
• Remove and clean the fan and fan mesh. Ensure the fan is free of dust and moving easily.
Tips
• Carry a spare fan.
• Periodically check your drain hose (aka excess liquids hose) for blockages. Wear protective
clothing and gloves. To check if there is any blockage around the drain outlet under the
perforated false floor, disconnect the drain hose from the chamber and pour hot water in the
chamber. To check if there is any blockage in the drain hose, pour hot water down the hose.
It is important to observe safety procedures when dealing with fresh human waste.
Please ensure you wear protective clothing (gloves and old clothes).
Do not attempt to move the chambers on your own.

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ROTATING THE CHAMBERS
The chambers will need to be changed on a regular basis. A sufficient number of chambers must be
purchased to allow the ‘out-of-service’ chamber a minimum of 6 months to compost (depending on
the climate) from the time they are disconnected from the waste chute.
sAfeTy WeAr
When handling compost it is important protect yourself from exposure to any potential pathogens.
Wear safety materials such as gloves, long sleeves, goggles and a dust mask.
Optional: Remove dust plug
to drain excess liquids.
Disconnect the vent and drain system
from the chamber, and immediately
plug the liquid drain outlet with the
dust plug. Lift the in-service lid up the
chute and leave it there.
Remove the chamber from under
the floor. Place the lid of the empty
chamber onto the full chamber.
Add the 50mm pipe and vent to
the out-of-service chamber. We
recommend placing this chamber
in a warm, sunny position until it has
finished composting.
Pour a small bucket of bulking agent
down the pedestal to cover up the
waste pile before removing the full
chamber.
Add an even
50mm starter
bed of bulking
agent to the next
empty chamber
for in-service use.
2
4
3
1
Place the new in-service chamber
under the chute. Lower and lock the lid.
Connect the vent and drain system.
Tip: Tilt the chamber away
from the drain system before
disconnecting and then
inserting the dust plug.
MI
Connector Pipe Connector Vent Cap

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hoW cAn i Tell if my composT is reADy?
The size of the pile should have reduced in size by approximately 20%. Finished compost should
appear crumbly and moist (similar to fresh potting mix), not sodden or dry. It should not have any
offensive odour, just an earthy one. Also, the pile should not be producing high heat any longer.
WhAT cAn i Do WiTh composTeD mATeriAl?
The compost must be disposed of as per the local health department regulations. This normally
means burying the compost 100mm below the surface of the ground so that it does not get moved
around by people or animals walking over it. You could bury compost around fruit and nut trees,
lawns, flower beds or shrubs.
Avoid contact with edibles such as vegetables, herbs, and plants for harvesting seeds (eg. sunflower,
sesame). Although thermophilic composting reaches temperatures high enough to kill pathogens, we
want to avoid any chances of contamination.
explAnATion of The composTing process
Our composting toilet uses a natural aerobic process called Thermophilic composting. Basically,
aerobic microbes, actinomycetes bacteria and fungi generate heat and break down waste into
odourless compost that’s safe to handle.
To explain it in detail, it begins with the piling and layering of waste and carbon-rich materials
like wood shavings. Initially, mesophilic microorganisms break down easily decomposable
materials, releasing energy in the form of heat. As the temperature surpasses 45°C (113°F),
thermophilic microorganisms, including heat-tolerant bacteria and fungi, become dominant. These
microorganisms rapidly decompose complex organic compounds, generating even more heat.
The sustained high temperatures in the thermophilic phase accelerates the breakdown of organic
matter, kills pathogens, and promotes nutrient release. The compost pile naturally cools down after
the thermophilic phase, allowing mesophilic microorganisms to continue decomposition at a slower
pace.
For optimal performance, microbes require composting conditions that include:
• a minimum temperature of 12°C
• moisture content of about 70%
• 30:1 carbon-nitrogen ratio
• oxygen/airflow
Microbes require a balanced diet of carbon and nitrogen to thrive and carry out their metabolic
processes effectively. Simply put, carbon provides a source of energy, and nitrogen in the urine and
faeces is for growth and metabolic activity.

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TROUBLESHOOTING
pleAse reAD This secTion Before using your ToileT.
Nature Loo toilets have proven themselves to be one of the easiest systems to manage. However,
being a natural process, reliant on a number of factors beyond our control, it can occasionally need
some help to maintain an appropriate balance.
The ‘in-service’ chAmBer is filling Too quickly:
This may be caused by a number of factors:
THE TEMPERATURE IS TOO LOW for effective composting.
INSUFFICIENT AIR FLOW.
This can be caused by a broken fan or the chamber being too full. Check the fan is operating and the
level of the pile is not too high. This problem could also be caused by a blocked insect screen in the
vent cowl.
THE PILE BEING TOO WET.
This could be the result of the outlet of the liquid chamber being blocked and causing the upper
chamber to flood. Check the drain hose is not blocked and flush with a hose if necessary. You may
need to change chambers if the blockage is in the chamber and thoroughly flush out the contents of
the liquid chamber.
ANTIBIOTICS AND DISINFECTANTS WILL SLOW DOWN OR STOP THE PROCESS.
Restart the composting by reintroducing microorganisms. In many of these situations Nature Flush
Enzymes will help solve inefficient composting by breaking down the solids and thereby speeding up
decomposition.
The ‘ouT-of-service’ chAmBer is composTing Too sloWly:
This may happen due to one or more of the problems described above. You could add 500ml of
Nature Flush Enzymes from a domestic spray bottle as you turn the material and add a quantity of
Nature Quick Microbes.
You should consider locating the chamber where it has a greater exposure to direct sun light.
However, if you find the pile is drying out too quickly put the chamber in a shadier position.
If you find that none of the above measures are effective, it means the local climatic conditions
are less than ideal. This can happen in cold or humid conditions and you will need to purchase an
additional chamber in order to provide an extended composting period.
If you need to change your ‘In-service’ chamber and the ‘Out-of-service’ chamber is not yet
composted, dispose of the waste as normal and order an extra chamber from Ecoflo.

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Find more Troubleshooting and FAQ information online at
ecoflo.com.au/FAQ
or call us on
1300 138 182
The oDour from The ‘ouT-of-service’ chAmBer is unpleAsAnT:
If the ‘Out-of-service’ chamber is not connected to the vent pipe it may smell immediately after it has
been taken ‘Out-of-service’. Odours can be greatly reduced or eliminated by covering the top of the
pile with straw or dry grass clippings. You may wish to do this before disconnecting the chamber.
The oDour from The ‘in-service’ chAmBer is unpleAsAnT:
If this is not caused by a failed fan, or blockage in the vent pipe, liquid drain hose or fitting, please see
the “‘In-service’ chamber is filling too quickly” section for how to resolve this problem.
The poWer hAs fAileD resulTing in ToileT room oDours:
Cover the pedestal with cling film until the power is restored. If you are connected to mains power
consider installing an Uninterrupted Power Supply (UPS), available at Ecoflo Wastewater Management.
The UPS will cut in with power from a 7Ah battery when there is a loss of mains power.
Helpful hints from our customers:
• Paint the Vent Stack black to produce an upward air flow.
• Add a wind assisted turbo vent to the Vent Stack.