MullToa 25 Waterless Composting Toilet

  • Sale
  • $2,350

• Fully Automatic
• Closed-system Waterless Composting Toilet
• No Drain or Water Required
• Perfect for Cabin, Workshop or Pool cabana
• 3 - 4 people part time use
• Convenient Seat Height 20½in (52 cm)
• Quiet Operation
• Economical Hydro Consumption (355W)
• Easily Installed

The closed-system MullToa 25 Waterless Composting Toilet (Biolet 25 in the USA) is the perfect choice for your boathouse, bunkie, pool cabana, and even as a second (or third) toilet.  Featured last spring on HGTV's Backyard Builds (April 2019) as the ideal choice in Sam & Tammy's pool cabana, the MullToa25 is easy to install and use. It plugs into a standard electrical outlet and requires no drain or water.  It is easily placed almost anywhere.  Simple perfect.  No Odours. You can have a toilet lakeside in your boathouse, or poolside in your cabana.  Anywhere.

How does it work? 

Super easy, and brilliant technology.

Sitting on the toilet seat opens the trap doors; closing the toilet seat lid after each use activates the stainless steel mixing mechanism that efficiently breaks down paper and distributes moisture into the compost material in the upper chamber. Once a week or as needed, mulch is added through the toilet seat opening. That is it!

Without any water or drain to connect, the MullToa 25 accelerates the natural decomposition process and evaporates excess moisture. Material in the upper chamber is finished in the lower chamber and eventually emptied. Under vacation use the finished compost is emptied only once or twice a year!

Using efficient Swedish technology electrical consumption is very low. The MullToa 25 uses approximately 64 watts per person per hour (averaged over a 24 hour period). When you are away for more than two days, just shut it off! It does not use any electricity when you are away.

The MullToa 25 does not require space under the building as the whole unit is “above floor” and is easily installed in about 3 hours.

The MullToa 25 comes with Mulch, a standard vent installation kit (approximately 8 ft interior vent pipe, 4 ft exterior vent pipe, insulation, roof flashing, insect netting), and manual mixing rake. 

Additional Vent pipe, 45º Elbows and Mulch are available separately.

Flat rate shipping fee of $250 to most of Canada.

Links (use back button to return):

MullToa 25 Brochure

Installation Guide

How the MullToa Works

Frequently Asked Questions

Specifications & Measurements
Capacity (based on 5 toilet uses/person/day): 3 - 4 people part time (up to 5 days in a row)
MullToa25 dimensions: H 26in x W 22in x D 30in (H 66cm x W 55cm x D 74cm)
Floor space required (to allow compost tray to be emptied): W 22in x D 44in (W55cm x 110cm)
Seat height: 20.5in (52 cm)
Electrical Requirements: 120V, 60Hz, 355W max
Shipping Information/Toilet Carton: D 30in x W 23in x H 28in; 60lb

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