Walinga Central-Vac Operator And Parts Manual page 26

10. System Filter:
The system is designed with
a large filter in the blower inlet
line to stop dirt, dust and
Filter Access
contaminants from going
through the blower. With the
intended operation in dusty
and dirty environments, the
blower life is not compro-
mised from contaminants
entering the system.
Open the flapper valve on the
bottom of the filter cannister
and remove the accumulated
material at the start of each
day.
Remove the filter and clean
whenever the vacuum valve
goes over relief. After
several cleanings replace the
filter.
Flapper Valve
Fig. 4-9 SYSTEM FILTER