Master data
Name of operator:
Plant model:
Purification class:
Number of connected residents / population equivalent:
Date:
Plant component / function
First impression
Installation location tank
Installation location syphons / pumps
Installation situation hoses + cables
Ventilation line
Control unit
Are there/Were are malfunction messages?
Inspection operations diary
Display --> economy phase
Operating time clear water syphon
Operating time feed syphon
Operating time ventilation
Total operating time
Preliminary sedimentation
Is it possible for external water to enter?
Are pumps / syphons functional?
Is the feed pipe free of dirt?
Is there any floating sludge?
Height sludge level (if possible)
Height water level (if possible)
Aeration
Is it possible for external water to enter?
Are pumps / syphons functional?
Is the sludge syphon open / closed?
Function oxygen supply?
Function floating switch at Hmax.
Function floating switch at Hmin.
Freedom of movement floating switch?
Is there any floating sludge?
Has plant overflown?
Sewage analysis (parameters as far as measurable)
Odour
Colour
Temperature
Activated sludge volume
Sedimentable substances
pH value
Oxygen concentration
Other remarks
Date
14. Maintenance Checklist
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Check
yes
no
Sign
Location:
Plant size:
Serial number:
Time:
Defect
Comment
yes
no
NH
-N-ammonia nitrogen
4
NH
-N-nitrate nitrogen
3
NH
-N-nitrite nitrogen
2
N
-total nitrogen
tot
P
-Gesamtphosphat
ges
CSB Ptot total phosphate
BSB
5
126
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