B. USER GUIDE 3. RECOMMENDATIONS FOR OPERATION AND MAINTENANCE
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Installation and User guide – ECOROCK-5000 & BIOROCK Multirock Systems – 10-10-2017
Check the BIOROCK media and its possible settlement
To be done annually(Multirock: Each quarter)
The BIOROCK Media may settle progressively as the water flows through it. This generally occurs
after some years of usage.
Should this occur, just shake the BIOROCK media bags manually and placed them back in the tank.
Make sure that each layer of bags completely covers the surface of the Treatment Unit with no free
space between the bags which should always overlap each other.
If the inspection shows an accumulation of suspended solids at the top layer of BIOROCK media,
then the BIOROCK media of the top layer may need to be cleaned more thoroughly. (see Ch. “Cleaning
or replacement procedure for the BIOROCK Media”)
Any long-lasting water accumulation on the surface of the bags indicates that it is necessary
to clean at least the first layer of BIOROCK media.
The frequency of cleaning and / or replacement of the BIOROCK media bags depend on the
quantity and quality of effluent leaving the Primary Tank. Checking the Effluent Filter and
Primary Tank on an annual basis is very important.
(Multirock: Each quarter)
If you still notice the presence of fats:
If flow difficulties persist after the above cleaning operations, check for an accumulation of fat
in the Primary Tank and at the Effluent Filter.
If you still notice the presence of fats:
If flow difficulties persist after the above cleaning operations, check for an accumulation of fat
upstream from the treatment unit(s).
In this case, the Primary Tank and the Effluent Filter efficiency must be checked.