Natural
Sewage Plant (NSP) Type 2 ...
... treats only the liquid waste. Solid waste remains in the 1st compartment
of the septic tank.
This type of sewage plant needs 5 m2 per person, as there is no compost area
involved.
The waste water is either pumped , if there is no slope, or naturally flows,
if there is sufficient slope, from the 2nd compartment of the septic tank, so
the 1st compartment must be professionally cleaned out from time to time.
The NSP works guaranteed to be odourless as the waste water is applied directly
into the filter material.
