5. Operation and maintenance
Picture 32
A
Correct operation and service
guarantee good functionality and
long operating life for WehoPuts
miniature treatment plant. Opera-
tion and service should be logged
in the treatment plant operation
journal.
NOTE! Protective gloves must be
worn and instructions followed
during service. The treatment
plant lid must be locked aft er the
procedures.
A working treatment plant requires
the following regular maintenance
procedures:
•
Monitoring treatment plant
operation using the control
unit display and plant
signal lamp or GSM remote
monitoring
•
Monitoring amount of
WehoPuts fl occulation
chemical and fi lling chemical
tank as required
•
Emptying the sludge bag as
required, normally on average
between 2 to 4 months
(WP 10: 1 to 3 months)
•
Alternatively, the sludge can
be removed using a vacuum
truck at least 2 times per year
or based on a settling test
•
Periodic service once a year, at
least every 2 years
5.1 Treatment plant operation
monitoring
To ensure disturbance-free treat-
ment plant operation, pay regular
attention to the signal lamp, con-
trol unit display and compressor. In
case of alarm/failure, proceed as
described in section 6.1.
The following procedures are part
of regular monitoring:
•
Verify the signal lamp is
constantly on, if the light
goes out or is fl ashing, see
section 6.1.
•
Follow compressor activity
every week.
•
Follow aeration functionality
by monitoring process tank
water level. If the air bub-
bles are single and large, the
aerating equipment requires
service
•
Observe the quality and odour
of outgoing water.
•
Check the functionality of
the control unit ground fault
switches at least once a year.
The switch is checked by
pressing the Test button in
the control unit. Pressing the
button should trigger the
fuse, which is restored aft er
the test.
NOTE! You can test the functional-
ity of the compressor or pumps by
moving the device plug to the X6
service socket or choosing IO test in
the soft ware menus (section 4.3)
5.2 Filling chemical container
The treatment plant control unit
will alarm when the chemical tank
is emptying. The alarm will not
interrupt the cleaning process
itself, but more chemicals need to
be added as soon as possible.
The treatment plant consumes ca.
0.2l of chemical per 1m
3
of waste-
water. The chemical tank holds 50
litres.
We recommend not fi lling the
chemical container completely if
the treatment plant is not in active
use. The chemical may form layers
with ageing.
The WehoPuts fl occulation
chemical is sold in containers of 10
and 20 litres.
Only the WehoPuts
fl occulation chemical
may be used in the
treatment plant.
The WehoPuts fl occulation
chemical is a corroding agent
(pH 2). The chemical safety data
sheet must be studied before
handling the chemical.
NOTE! Filling the chemical tank
must be registered in the operation
journal!
The chemical tank is located below the
treatment plant machine room and it is
fi lled through the pipe in the machine
room.
NOTE! Use protective gloves
and glasses when handling the
chemical!
Filling chemical container:
1.
Study the chemical safety
data sheet.
2.
Open the fi ller pipe cap
(picture 32, A)
3.
Empty the chemical container
using the funnel
(picture 33 B). Be careful not
to spill the chemical.
4.
During fi lling, monitor the
surface of the chemical from
the fi ll pipe to prevent overfi l-
ling. The tank holds 50l.
5.
Close the cap.
6.
The chemical alarm is auto-
matically acknowledged when
chemical has been added into
the container.
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