Biolan Simplett Toilet | Urine Separating Waterless Toilet

The Biolan Simplett Toilet is a compact urine separating toilet designed for both indoor and unheated spaces, making it ideal for cottages, cabins and off grid buildings. It operates without water or electricity and is engineered to be odorless, hygienic and environmentally friendly. The bowl separates liquid and solid waste at the source, which dramatically reduces odors and simplifies handling.

Solids are collected in an internal container that can be used with composting bags for easier emptying and transfer to a compost system. Urine is diverted to a separate line and routed to a leach bed or storage tank. By separating urine, the typical hydrogen sulphide smell associated with toilets is minimized. Proper ventilation and the use of a covering material such as peat moss, coco shells or sawdust over the solids further prevents bad odours and supports composting.

The Simplett can be used year round when installed in a heated space with correctly sloped and insulated urine and vent lines. Built from frost resistant polyethylene, it tolerates cold temperatures without damage, making it suitable for seasonal or unheated installations when installed according to guidelines.

Key Features

Toilet type: Urine separating, waterless dry toilet
Installation: Can be installed directly on the floor in indoor or unheated spaces
Operation: No water or power required, relies on gravity separation and passive ventilation
Odor control: Urine separation, vent pipe and composting cover material reduce smells
Solids handling: Internal solids container compatible with composting bags for easier emptying
Urine handling: Separate urine outlet pipe routed to leach bed or closed urine tank
Year round use: Suitable for all season use in warm spaces with insulated piping and proper slopes
Ventilation: Designed for direct venting outside; can be paired with a Biolan wind turbine fan for enhanced draft
Environmental benefits: Low impact, supports composting, reduces water use and sewage load
Ideal applications: Cottages, off grid homes, saunas, tiny houses, remote cabins

Technical Specifications

Material: Frost resistant, UV protected polyethylene

Seat height: 49 cm

Seat cover: Hinged insulated thermal seat

Ventilation pipe connection: Black Ø 75 mm

Drain hose (urine): Ø 32 mm

Solids container volume: 28 litres

Weight: 8 kg

User capacity: No fixed maximum, suitable for continuous use when properly installed Power and water: Not required Colour: Charcoal