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Operation and maintenance
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Sludge removal instructions
7.4
Removing sludge from the wastewater treatment system should be carried out according to the following
points:
1. Remove the cover
2. Remove the deposits on the water surface and on all visible surfaces (baffle, sample container,
siphon)
3. Wash down the visible surfaces
4. Insert the suction hose into the wastewater treatment tank until it reaches the floor
(
CAUTION:
air admittance valves on the ground must not be damaged!
)
Aspirate until about 30 cm of wastewater and sludge remain in the wastewater treatment system
