These maintenance intervals must be adhered to for grease separators
To ensure that grease separators function correctly and to maintain warranty and insurance cover, they must be inspected and tested regularly. The following maintenance intervals apply:
- At least once a month: self-inspection by competent experts / inspectors
- Maintenance by competent experts at least once a year
- At least once every five years: general inspection by competent skilled persons
In addition, the contents of the grease separator must be disposed of frequently enough to ensure that the storage capacity of neither the separation tank nor the sludge trap is exceeded. Unless an automatic measuring device is used, disposal must take place at least once a month, preferably every two weeks.
Self-assessment in three steps
If you wish to carry out the monthly self-inspection of a grease separator, you must follow these steps:
Step 1
Measure the thickness of the sludge layer. It must not fill more than half of the sludge trap.
Step 2
Measure the thickness of the grease layer. It must not exceed the value corresponding to the grease capacity stated on the type plate. (This step is not required if an automatic measuring device is used.)
Step 3
Carry out a visual inspection of the inlet and drain pipes and check the system for faults.
Maintenance in six steps
During the annual maintenance of a grease separator, a self-inspection must be carried out, along with other tasks:
Step 1
Measure the thickness of the sludge layer. It must not fill more than half of the sludge trap.
Step 2
Measure the thickness of the grease layer. It must not exceed the value corresponding to the grease capacity stated on the type plate. (This step is not required if an automatic measuring device is used.)
Step 3
Carry out a visual inspection to check that the system is working properly and check for any floating debris.
Step 4
Check the inner walls of the separator tank and sludge trap, including the coating. For concrete separators, check the wall surfaces particularly for cracks; for metal separators, check for corrosion in the area of the grease layer.
Step 5
Check that any electrical components are in working order.
Step 6
Record and evaluate the work carried out in a maintenance report.
