A. INSTALLATION GUIDE 5. VENTILATION AND WATER DISTRIBUTION
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Installation and User guide – ECOROCK-5000 & BIOROCK Multirock Systems – 10-10-2017
5
VENTILATION & WATER DISTRIBUTION
Never smoke in the vicinity of the installation or sewage works in general.
Never enter the tanks without taking the necessary safety precautions such as
ventilation, air monitoring, air supply and other procedures as required.
Always have someone else on site if entering confined spaces.
Both the Primary Tank & ECOROCK-5000 unit(s) must be vented separately
Achieving efficient ventilation is always the responsibility of the installer as he is
familiar to the implementation site and local conditions that may interfere in the
system’s venting.
Make sure that the ventilation works properly. Always check the efficiency of the
ventilation through the system with a smoke test prior to backfilling.
If the site is not suitable for non-electric ventilation, electric ventilation should be
installed
Use as few bends as possible
NEVER USE 90
o
bends
Only use 45
o
bends
5.1 VENTILATION OF THE PRIMARY TANK
A Primary Tank generates malodorous gases that must be removed by effective ventilation.
The Primary Tank must have a ventilation system consisting of a low air inlet and a high air outlet.
The distance between the air inlet and air outlet pipe should be as far as possible from each other.
The high air outlet pipe should have a wind driven or electrical ventilator
The wind driven ventilator must be located at least 400 mm above roof level, clear of all
potential obstacles and located at least 1 m away from any windows or skylights
We recommend a gradient of 1% to avoid any water settling in the air pipe
