A. INSTALLATION GUIDE 4. INSTALLATION OF THE SYSTEM
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Installation and User guide – MONOBLOCK Systems – 06-12-2016
4.1.1 Before the installation of the complete system
Always keep the system accessible
Check the tank and associated equipment (options, connections, seals, etc.) Before installation,
see technical details for each system;
A minimum distance of about 3 m
1
from the house and 3 m
1
from trees which have extensive
roots should be ensured;
A minimum distance of 2.5 m
1
from any building should be ensured, otherwise the stability of
the building should be checked;
The installation should be located away from any traffic areas and parking (at least 2 m
1
);
The installation of the MONOBLOCK system is possible in high ground water conditions if special
precautions are taken
Consult a professional engineer if the units are to be installed with extension sets (“deep”
installations)
System lids should not be buried and should always remain accessible for maintenance
The minimum distance between the primary tank and the treatment unit is 300 mm
The distance between the side of the excavation and the tanks must be minimum of 300 mm
Connections for the MONOBLOCK system are made with flexible seals with a diameter of 110 mm
The effluent inlet pipe to the first compartment should have a minimum gradient of 2 % and a
maximum of 4%
Local rules and legislation should be respected
4.2 INSTALLATION IN DRY GROUND CONDITIONS
See appendix 1.1
«Installation in dry ground conditions»
Conditions for installation:
-
Dry and stable ground conditions
-
Absence of water at the bottom of the excavation
4.2.1 Installation and digging in dry ground conditions
The maximum level of top soil above the backfill is 200 mm
The units must stand on a clean and stable base such as concrete
In dry ground conditions pea gravel can be used as backfill
Mud and other soft materials must be removed from the bottom of the excavation prior to
installation
A stable base must be created at the bottom of the excavation
The base of the excavation should be level and compacted
There must be a distance of at least 300 mm between the walls of the excavation and the units
4.2.2 Installation of the system in dry ground conditions
Once the base of the excavation is stable, the installation can begin.
The MONOBLOCK system should be positioned horizontally.
Before connecting any water or ventilation pipes, ensure that the units are perfectly
Installed and stable on the base.
Ensure that all levels are correct so that the wastewater can flow freely through the system
Check that all connections are correctly positioned
Ensure that the seals are watertight
