Owner’s manual
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20200908
Ecoflo biofilter – nitrogen reduction unit (ECDn)
Item # 339924
The model and the number of ECDn are determined by the domestic wastewater flow per day. Other factors such as the available
space, the topography of the lot, as well as the type, permeability and depth of the natural occurring soils could influence model
selection.
2. Ecoflo biofilter – nitrogen reduction unit (ECDn) models
There are many different models of ECDn and each model has different characteristics. The letters and numbers associated with the
ECDn specify the model's characteristics, as presented in the following table with model ECDn-500-P (PACK) as reference:
EC refers to the Ecoflo model
EC = Ecoflo 100% coco biofilter
Dn
Nitrogen removal product with a maximum applicable HLR 575 L/m²-d,
i.e. of 14.1 gal /ft²
500 refers to the daily flow capacity
500 = Capacity of 500 US gallons per day
600 = Capacity of 600 US gallons per day
865 = Capacity of 850 US gallons per day
1000 = Capacity of 1,000 US gallons per day
1100 = Capacity of 1,100 US gallons per day
P refers to the material of the shell
C = Concrete
P = Plastic (Polyethylene)
PACK refers to configuration of the primary tank
and biofilter
PACK = monobloc configuration, both tight together
No mention = In line
Therefore, according to this nomenclature, the ECDn-500-P (PACK) model refers to an Ecoflo biofilter, nitrogen reduction version, with
a daily flow capacity of 500 US gallons, in a polyethylene shell. Both primary tank and biofilter come in a monobloc configuration
(pack).
For models that doesn’t come into PACK configuration, the recommended hydraulic retention time of the primary/septic tank is a
minimum of two days at the design daily flow.
3. Installation Diagrams
NOTE: The installation diagrams below show the ECDn with polyethylene shell-PACK configuration.
