Installation Guide
MullToa 65 / MullToa 55
MullToa 25 / MullToa 10
MullToa Composting Toilet is a biological composting toilet that uses the processes of evaporation and aerobic
decomposition to transform human fecal waste, urine, and toilet paper to a hygienically safe product (humus) that may be
safely utilized. Proper installation and maintenance is important.
Please read instructions completely and give us a call
if you have any questions. Always check with your local health authorities and building inspectors for local
regulations governing composting toilets prior to the installation of your MullToa.
What Comes in the Box
1 – Composting Toilet
1 – MullToa Mulch (30L Bag)
1 – Winterizing Plug
1 – Manual Mixing Rake
5 – 56 cm (22 in.) sections 54mm white vent pipe, belled 1 end
1 – 56 cm (22 in.) white vent pipe, no bell (Reducing Coupling
attached)
1 – 56 cm (22 in.) section 108mm black vent pipe, belled 1 end
1 – 56 cm (22 in.) section 108mm black vent pipe, no bell
2 – 56 cm (22 in.) Styrofoam insulation
1 – Roof flashing
1 – Insect Netting
Accessories
(available separately)
• 45º Vent Pipe Elbows • Insulation • Interior/Attic/Exterior Pipe • MullToa Mulch
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Tools You Will Need
•
Standard & Phillips screwdrivers
•
Drill
•
2 1/4” Hole Saw, Jig Saw or Keyhole Saw
•
Hammer
•
Roofing nails
•
Level
•
100% adhesive silicon caulking
(do not use latex silicon)
•
Plumb bob or weighted string
•
Pencil
Before You Begin
✔
Make sure there is adequate airflow into the bathroom. This should preferably be from the living area. A 1”
gap under the bathroom door or a vent in the bottom of the door or wall will ensure sufficient airflow to the
toilet. Overhead vent fans and open windows should be used with caution as they may cause negative air
pressure and promote a back draft through the toilet causing the presence of unpleasant odours. You are
installing a chimney.
✔
In some cases it may be necessary to install a 3” fresh air intake wall vent in the bathroom in order to ensure
enough airflow to the toilet (see diagram below).
✔
Ensure there is adequate floor space in front of toilet to accommodate removal of the tray.
✔
The temperature in the room where the toilet is to be installed must be maintained above 18°C (64°F) during
periods while the toilet is being used.
✔
Make sure the floor under the toilet is level and insulated (not dirt or poured concrete slab).
✔
The vent pipe must extend at a minimum of 50cm (19.5”) above your roof peak. Or anything within 10’
(additional vent pipe may be ordered separately).
✔
If you cannot install the vent pipe straight up from your toilet, Make sure your installation can be achieved with
the installation of no more than 2 x 45° angles (available separately).
✔
Make sure the vent pipe is less than 30’ in a straight up installation or 27’ if 2 x 45° angles are required.
Questions?
Call our Customer Assistance Centre:
1-888-436-3996
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