1. General notes
1.1 Safety
A second person is required for health & safety, in particular when entering the tank..
The relevant regulations and standards must additionally be taken into consideration during installation,
assembly, servicing, repair, etc. Relevant notes can be found in the corresponding sections of these
instructions.
During all work on the system or parts of the system, the entire system must always be rendered
inoperable and secured to prevent unauthorised reactivation The entire system must always be taken out
of action & secured against being switched on again whilst work, repair or maintainance is carried out on
parts of the system or the system.
Except when working in the tank; the tank cover must always be kept closed due to acute danger of
accident.
GRAF offers an extensive range of genuine parts & accessories, all of which are designed to ensure the
system performs as specified. The use of non-genuine Grafparts or accessories may lead to the
system's functional capability or failure, therefore invalidating Warranties & Guarantees and liability for
resulting damage.
2. Installation conditions
2.1 MINIMAX-PRO Filter internal
The MINIMAX-PRO Filter is suitable for installation in a manhole or a underground tank.
The difference in height between inlet and outlet is around 10 mm with a straight outlet and 80
mm with a curved outlet.
The filter is suitable for roof areas up to 350 m².
The mesh width of the sieve insert is 0.35 mm.
