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11. Maintenance and replacement instructions
The following described maintenance schedule could be done by authorized service personnel or by
the owner themselves.
The instructions mentioned must be followed strictly!
When working inside of the tank or on electrical equipment please unplug the power
cord before.
Avoid direct skin contact with the grey water when cleaning the pre-filter and the
membrane. Please use rubber gloves!
The following table represents an overview of regular maintenance and replacement intervals. Detailed
descriptions are outlined in the corresponding chapters.
Maintenance and/or check interval
Replacement interval
Pre-filter
Checked and cleaned every 2
months
--
Suction / back flush pump
Checked every 6 months
after 20.000 hrs. running time
Floating switch
Checked every 6 months
--
Pressure sensor
Checked every 6 months
--
Blower
Filter element:
Checked and cleaned every
6 months
Filter element:
Replaced after 4 year
Blower piston set assembly:
Replaced 4 after 20.000hrs
running time
Membrane
Flow test:
every 6 months
Mechanical/chemical cleaning:
every 6-12 months -
depends on the
average flow
Membrane replaced after 10 years
Bio reactor
Checked by sight and by smell
every 6 months
---
11.1 Pre-filter
The filter basket should be checked every 2 months and cleaned (extract and clean with water), if
necessary. The cleaning interval can then be extended depending on the build-up of contaminants.
The integrated non return valve must be checked twice a year and cleaned of any dirt or deposits.
