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Perform all inspection procedures listed in 6-
month inspection. Pump out sludge in the first and second chambers (if necessary).
If the maximum sludge accumulation has been reached, see description in 6-month inspection.
Make sure to remove the scum on top layer first, then pump out the sludge of each chamber.
INSPECTION AND MAINTENANCE - PUMPING AS NEEDED
Figure 21 -
Pump out procedures
Step 1:
Remove the scum.
Step 2:
Remove the sludge
1)
2)
Sedimentation/separation tank
Vacuum
Step 1:
Remove the scum.
Step 2:
Remove the
sludge
on the filter media.
Step 3:
Remove the sludge
under the media while
washing the filter with tap
water.
1)
Anaerobic filter tank
Vacuum
Tap water
2)
3)
ATTENTION:
Remove the scum first. If you remove the sludge first,
the water
level will decrease and the anaerobic filter will be blocked by the scum.
Figure 22 -
Cleaning of anaerobic filter tank, remove all scum and sludge.
