EN-4
EN
1.4 Routing the liquids
Connect the liquid pipe (part 14) to the drain hole in the rear wall of the
toilet.
Route the pipe to the collecting tank or treat the liquid otherwise in a
due manner. Bury the collecting tank in the ground, or position it in such
other way that the liquid flows under gravity into the tank.
If you use the Populett in the urine separating mode, the hose must
extend all the way to the bottom, in which case the surface of the liquid
in the tank makes a drain trap in the hose. Thus the air cannot flow from
the liquid tank back to the toilet unit. The tank must be provided with
either a pressure relief valve or some other route for the replacement air.
Keep in mind possible use of the toilet in winter when laying the liquid
pipe and locating and insulating the canister.
If it is difficult to bury the collecting tank in the ground, you can replace
it with an evaporating pan. To reduce the liquid volume, set the Populett
to work in the mode in which it separates seep liquid. There must be
a rain lid above the evaporating pan. For neutralisation of odours, use
non-fertilised Biolan Peat (see Accessories on page EN-8) in the pan.
1.4.1 Separating the urine
The structure of the Biolan Populett’s front edge enables partial separa-
tion of the urine.
For the separating mode, shift the transparent separating flap (part 8)
at the front edge to a position where it forms a funnel at the separating
pipe (see Fig. 2). During winter use, the separation reduces build-up of
mass susceptible to freezing. As urine is directly conducted away, it will
not be absorbed by the bulking material and freeze in the tank. Although
the Biolan Populett is set to separate urine, seep liquid will also come
out of the unit. It is drained off from the unit together with the urine. If the
Populett is set to separate urine, more liquid will be created for collection
and treatment. Take this into account when dimensioning the treatment
system. In a toilet that separates urine, the mass remains dryer, which
makes emptying the toilet easier.
1.2.4 Separating the seep liquid
It is possible to operate the Populett in a mode in which it only separates
seep liquid. Leave the separating flap (part 8) at the front edge in front of
the separating pipe so that it will direct the urine into the toilet waste (see
Fig 3). The excess liquid that is not absorbed by the bulking material or
the toilet mass is separated by means of the intermediate structure of
the bottom. Thus less liquid but more mass will be created in the toilet,
especially in winter, compared with working in urine-separating mode.
Liquids rich in nutrients must not be allowed to enter the soil
as they cause an excessively concentrated nutrient load.
What is seep liquid?
Excess liquid on the bottom of the dry toilet which has not
been absorbed by the toilet waste is called seep liquid. This
liquid is rich in nutrients, but contains microbes. Therefore it
is recommended that it be kept in storage for about a year
before being used as fertiliser. Seep liquid is also an excel-
lent activator for garden compost.
Which one of the two optional liquid separating
methods would suit us best?
Separation of seep liquid = only a small amount of liquid
is created
a summer cottage
neither a big garden, nor objects of application for the liquid
no place for a large liquid-collecting tank
Separation of urine = large amount of liquid created
a cottage used also in winter or, for example, frequent pub
-
lic use
a garden where liquid rich in nutrients can be utilised
possibility to accommodate a large tank for collecting urine
Fig. 1
Fig. 2
Fig. 3
