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EN-5

EN

6.  Disposal of the product 

The raw materials used are presented in the list (see page 4)  Dis-

pose of each part as prescribed. Always follow the regional and 

collecting-point-specific instructions.

PE = polyethylene  

 

 

to energy-from-waste process or recycling of plastic 

PP = polypropylene 

 

 

to energy-from-waste process or recycling of plastic 

RST = stainless steel 

 

to recycling of metal  

Paper  

 

 

to recycling of paper 

02

PE-HD

05

PP

3.  Problems that may occur

3.1  Odours and moisture

No odour problems occur in the Separating Dry Toilet provided that 

it is installed and used in the correct manner. If odour problems oc-

cur, check that:

• 

there is no liquid on the bottom of the toilet tank (part 1). If liq-

uid exists, check the removal hose connection for tightness and 

wash the tank to eliminate the odour. Make sure that the fore-

most inner receptacle is correctly positioned against the rim of 

the separating bowl.

• 

make sure that the ventilation pipe leading from the toilet unit 

to the roof, is straight and extends above the roof ridge. If the 

ventilation pipe is not straight or does not extend above the roof 

ridge, you can repair the installation or improve the ventilation by 

installing a separate Biolan Exhaust Ventilator or a Biolan Wind 

Fan (see Accessories on page EN-6).

• 

the hose leading to the liquid canister extends to the bottom of 

the canister. This ensures that the surface of the liquid in the 

canister forms a drain trap in the hose, preventing air-flow from 

the canister towards the liquid bowl. 

• 

the waste in the inner receptacles is always covered with Biolan 

Compost and Toilet Bulking Material or Biolan Peat.

3.2   Insects

Insects do not normally exist in the Separating Dry Toilet. But if flies, 

for example, appear in the toilet unit, empty both receptacles into a 

compost and then wash them. Do away with any flying insects in the 

toilet space, using pyrethrin-based spray. Consult your local garden 

centre to select a suitable product. 
Also check that:

• 

the waste in the inner receptacles is always covered with Biolan 

Compost and Toilet Bulking Material.

• 

the ventilation pipe leading from the toilet unit to the roof, goes 

straight up and extends above the roof ridge. If the ventilation 

pipe does not go straight up or does not extend above the roof 

ridge, repair the installation or improve the ventilation by install-

ing a separate Biolan Exhaust Ventilator or a Biolan Wind Fan 

(see Accessories on page EN-6).

4.  Composting the toilet waste

Waste emptied from the Separating Dry Toilet always requires 

composting before it can be utilised. You can compost the toilet 

waste together with garden waste and domestic bio-waste. While 

composting, make sure to observe the local regulations on waste 

handling, and consider sufficient protective distances to neighbours, 

wells and nearby bodies of water.
Organise the composting so that no liquids seep from the compost 

into the soil. The Biolan Garden Composter or the Biolan Stone 

Composter (see Accessories on page 8) is well-suited to the pur-

pose. For hygienic reasons, compost the toilet waste for at least a 

year before applying it to edible plants. Composting for half a year is 

sufficient before application to ornamental plants. Burying waste in 

the ground is prohibited.

5.  Utilisation of liquid

Separated liquid can be utilised as nitrogen fertiliser or diluted with 

water, for example, for lawns, ornamental bushes and perennial 

plants. In the spring, in connection with the initial fertilisation, it can 

also be used for a vegetable plot but during the growing season it 

must not be applied to green vegetables. The recommended stor-

age time for urine is about three months before it should be used in 

the garden. Do not apply urine to plants in the autumn, in order to 

avoid disturbing the perennials' preparation for winter.
A safe dilution ratio for urine is 1:5, which means one litre is diluted 

with five litres of water. You can also use undiluted urine, but then 

you must water the area carefully after the application to avoid early 

blight. Carry out the application when it is cloudy, either early in the 

morning or late in the evening, when evaporation of nitrogen and 

the odour-related problems are at a minimum. During the growing 

season you can apply 1-1,5 l/m² of undiluted urine in your home 

garden.
Please consult your local waste advisor for regulations on compost-

ing. Visit www.biolan.fi for more information on composting and the 

utilisation of urine. 

Do not allow liquids that are rich in nutrients to enter 

the soil, as these cause an excessively concentrated 

nutrient load.

The micro-organisms in the compost decompose organic matter un-

der aerobic conditions. After the composting has continued for 1–3 

years the result will be compost soil. 

To ensure that the composting is as efficient as possible, provide 

the waste-decomposing micro-organisms with favourable living con-

ditions. The basic requirements for compost are the presence of 

oxygen, moisture and nutrients.
The micro-organisms in the compost require moist conditions, so 

the compost must be suitably moist, but not wet. The solid waste 

from the Separating Dry Toilet is relatively dry and also poor in ni-

trogen compared with the Dry Toilet where urine and solid matter 

are placed into the same tank. Therefore, dampen the compost with 

water, or with separated urine which provides the compost with a 

good source of nitrogen supplement.

To ensure that the compost is sufficiently airy, use coarse bulking 

material or branch chaff in layers among the waste. Compost that is 

too tightly packed or too wet is anaerobic and starts to rot and smell. 
Cover the surface of the compost carefully with bulking material, 

garden waste or peat after the addition of toilet waste or liquid. Turn 

the compost at least once during the summer to ensure that all 

the ingredients of the compost decompose properly. Toilet waste, 

composted with care, makes excellent soil conditioner for perennial 

plants, shrubs, trees and a vegetable plot.

2.5  Emptying the liquid tank

Empty the liquid tank, if necessary. The emptying intervals are de-

termined by the size of the liquid tank and by how often the toilet is 

being used. One person produces 1-1,5 litres of liquid daily.
Utilise the liquid that is rich in nutrients, in particular nitrogen, as 

fertiliser in the yard and garden. Although urine is sterile, it is recom-

mended to keep it in storage for about three months before using it 

in the garden.
You can use a small amount of undiluted liquid as a source of nitro-

gen for the garden compost and for the compost of separated toilet 

waste. Optionally, you can take the liquid to the wastewater treat-

ment plant. More about the utilisation of urine on page EN-5.

2.6  Cleaning the Separating Dry Toilet

Wash and clean the Separating Dry Toilet, as necessary. Any com-

monly available domestic cleaning agents may be used. You can 

disassemble the parts of the toilet to enable proper cleaning of the 

unit. Wash the liquid bowl in the top, the liquid funnel (part 17) and 

the drain pipe (part 16) with warm water and mild detergent or crys-

tallised sodium at least once a year to remove any precipitate that 

the urine may have formed.

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