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overflow pipe
Skimmer
Bottomdrain
Pump
U
V
C
direct to waste
Example gravity application
Example pump fed application
For pump fed application you must change the position of the level switch from the drum chamber mounting bracket to the inlet chamber
mounting bracket (see next page for detailed instructions). For pump fed application the level switch must be rotated 180 degrees (see
illustration). In a pump fed application you can adjust the socket height of the overflow pipe. This overflow pipe will allow (unfiltered)
water to flow into the drum chamber and back to the pond in case of a malfunctioning.
The return flow to the pond must first be raised via a standpipe to the desired water level in the bio chamber (see drawing).
For large water volumes, two return pipes are required .
The drumfilter housing is made of PP (polypropylene); you cannot solvent weld (PVC glue) PP. Use flexible waste fittings or fittings with a
rubber gasket (ask your dealer for advise).
The controller unit is splash water proof (IP65) and should be mounted dry and protected from direct sunlight.
“normal position”
high water level in
drum chamber
(controller will not clean)
“active position”
low water level in
drum chamber
(controller will clean)
Level switch in
gravity
application
“normal position”
low water level in
inlet chamber
(controller will not clean)
“active position”
high water level in
inlet chamber
(controller will clean)
Level switch in
pump fed
application
Pump
Summary of Contents for COMBI-DRUM
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