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Composting Toilet

Biolan Simplett - Non Electric - Urine Diverting - Self Contained

Price: £339 inc. VAT | €385 inc. VAT    

385 inc. VATBUY NOW

Biolan Simplett is a small compact dry toilet. Attractive in dark grey, the unit is vented passively via the 75mm diameter vent pipe that leaves the unit horizontally. The ideal direction for a flue is vertical like the other Biolan units. The Simplett is suited to lower usage. The urine runs through the unit and can go to a soakaway or a container.

  • Non electric unit
  • Vented naturally – can be boosted with the Biolan cowl
  • Does not come with vent pipe – can be added to order – vent pack
  • Urine is diverted – men must sit to urinate
  • Potentially portable, very durable
  • Download Biolan Simplett Manual
  • Guarantee 1 year for manufacturing errors
  • 8kgs
  • Waste need to be composted in a compost binBiolan Simplett Composting Toilet
  • Product code 705 702 10

Using bulking material

Use some bulking material after use to control the odours. Before using for the first time or when the container is changed add 50mm of bulking material to the bottom of the container to soak up excess fluid. Doing this will prevent smells.


When the inner container fills up, empty it into the composter. It is important to choose a secure pest proof composting bin that pets can’t get into. This must be a consideration when composting faecal matter. A Biolan 220 is ideal.  The container should be lined with a compostable bag to allow easy change out.


All parts of the Biolan Simplett dry toilet can be cleaned using any common domestic cleaning agent. The parts of the toilet can be disassembled, and, if you disconnect the liquid removal and ventilation pipes, you can even take the unit out. Wash the liquid bowl at the top and the liquid funnel. Flush the liquid pipe with warm water and a mild detergent or crystallised sodium at least once a year to remove any precipitate that the urine may have formed.

Product data Biolan Simplett Manual
Dimensions (height x width x depth) 515m x 525mm x 560mm
Weight about 8 kg
Sitting height 490 mm
Volume of the waste tank about 28 litres
Diameter of the outlet air pipe 75 mm
Connector for the liquid removal pipe 32 mm
Material dyed throughout UV protected polyethylene
Other Hinged Pehvakka thermal seat


Is the toilet going to be used all year round? YesNo

Do you have AC power? YesNo

Is your property single story? YesNo

Is there space below floor for a composter? YesNo

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