7
Misprints and printing errors reserved
So pay attention to the following, with regard to a
maximum flow per pipe:
The pond water level should not fall too much. If the pond
water level falls by 1 cm, the flow per tube may fall by as
much as 1 to 2 m3/hour. In case of large fluctuations of
the pond water level (due to evaporation, replenishing or if
you rinse the filter) there is a risk of insufficient water
being supplied to the filter. If your pump pumps more
water than arrives into the filter, the drum will be pumped
empty and the sensor will appear above the water level,
which will cause the filter to go in rinse cycle.
If the supply pipes are of significant length, with many
bends, there will be lots of friction loss and a lot less than
10 m3/hour may be supplied per pipe.
Entries that are not used should be sealed.
Discharge of dirt:
The dirt will be sprayed through the nozzles of the mesh,
into the flushing channel. The flushing channel can be
connected directly to the sewer or to a drainage point.
Return to pond:
The pomp is connected to the 110 mm discharge. If
necessary, make use of a flexible coupling, for a good
transit to your pump. A flexible connection will also reduce
vibrations.
Make sure that you never apply a pump larger than
recommended for the filter. As you go towards the
maximum of the filter in terms of the selected pump, you
should ensure that sufficient water is supplied and that the
dry running function of the electronics is engaged. This is
indicated on the display Siemens Logo in the Electronics
Cabinet.
7.2.1 Setting for sensor/float
Upon delivery, the sensor has already been installed for
use as gravity and in such a way that it will function
properly in most situations. Still you will need to check on
proper functioning after installation and adjust the float in
the best way possible.
If the float is in lowest position (4), the filter will postpone
the rinsing function, creating more pressure in the drum
(not recommended), although in case of a calamity or too
little water supply from the soil drains, this could be a
temporary solution, so the filter can keep running. If the
float is in highest position (image 3) the filter will rinse
more quickly and more often. Image 1 represent the
‘normal’
position, recommended for most ponds.
The cables of the float must be connected to numbers 1
and 2 in the electronics box. The wires of the magnet
contact must be connected to numbers 3 and 4.
7.2.3. Connecting the rinse pump
The Rinse pump is included with the Ma-koi drum filters
and Bio-drums, as standard. In case of the Bio-drum 30, a
connection has already been installed for the suction side
of the rinse pump.
For the other types, you can use one of the 110 mm exits,
by applying an adapter (ring) towards 32 or 25 mm for the
rinse pump. Or create a transit yourself at the location of
your choice, using a 25 or 32 mm tank transit. Make sure
that you assemble this transit into the ‘clean’ side of the
filter and not into the first chamber where the dirt enters.
This is to prevent clogging of the spray nozzles.
3
: Normal position (recommended)
4: Lowest position
5: Highest position
6:witlof tank
transit
