Filtreco Basic combi drum 25 User manual

1www.filtreco.nl
It is
clear.
www.filtreco.nl
100286
User manual
Basic combi drum 25
(gravity)
EN
ORDER NUMBER

3www.filtreco.nl
Introduction
Welcome to Filtreco: Filtration systems for koi ponds
Every koi lover knows the importance of good water quality. And that means having a good filtration
system for your pond. To keep your water clear, the choice is clear: Choose Filtreco. We know how much
you love your fish, and that is why we are the specialists that you can rely on. Your goal is to keep your
water clean, clear and healthy for your fish. But for clean water, you must choose the right filtration
system for your own specific situation. That's why Filtreco oers the widest selection of pond filters.
All with an unparalleled level of service, the lowest risk of malfunction and easy installation. Make no
mistake: when only the best quality will do, choose Filtreco. High-quality technology means quality of
life for your koi.
It is clear.
Introduction
This is the user manual for the Basic combi drum 25 (gravity).
By purchasing this Filtreco filter, you have made an excellent choice. Please read this user manual carefully
before you start using this system. This will enable you to familiarise yourself with the system first. Any
work carried out on or with this system must always be performed in strict accordance with this user
manual.
To ensure safe, proper use, always adhere fully with the safety guidelines. Please keep this user manual
in a safe place and transfer it to the new owner in the event that the system changes ownership.
Filtreco
Nusterweg 69
NL-6136 KT Sittard
The Netherlands
CoC 14052952
VAT NL 58.28.235.B01
Filtreco is a WTH B.V. brand.
IBAN: NL39RABO0136750729
BIC: RABONL2U
[phone]
info@filtreco.nl
www.filtreco.nl

5www.filtreco.nl
Introduction ............................................................................................................ 03
Contents ................................................................................................................... 05
1. What's included .................................................................................................... 06
2. Product description ............................................................................................. 06
3. Assembling the filter ........................................................................................... 06
4. Instructions for use .............................................................................................. 06
5. Safety instructions ................................................................................................ 07
5.1 Danger of electrical shock in contact with water .......................................... 07
5.2 Guidelines for electrical installations ............................................................... 07
5.3 Safe use ................................................................................................................. 07
6. Placement and setup .......................................................................................... 08
6.1 Connecting the control box .............................................................................. 08
6.2 Connecting the electrodes and water level meter ........................................ 08
7. First use .................................................................................................................... 09
7.1 Sequence for first use ........................................................................................ 09
7.2 Adjusting water level meter ............................................................................. 09
8. Control box ............................................................................................................. 1 0
9. Cleaning and maintenance ............................................................................... 1 0
10. Troubleshooting ..................................................................................................... 1 1
11. Winterising ............................................................................................................... 1 1
12. Wear parts ................................................................................................................ 1 1
13. Technical specifications ...................................................................................... 1 1
14. Technical diagram ................................................................................................. 12
15. Diagram for assembly in a pond ..................................................................... 1 3
Contents
Combi
drum
filters

6 Basic combi drum 25 (gravity)
1. What's included
• PP basin
• PP drum
• 70 micron stainless steel panel
• PP duct
• Water level meter with 3 pins
• Drum motor
• High-pressure pump
• Spray tube with 4 sprayers (the first of which has a higher
flow)
• 2x 110 mm inlets
• 2x 110 mm outlets
• 2x 110 mm drum bypasses
• 2x 1 1/2" drain with ball valve
• Control box
• Cover with safety lock
• 75 L Bio wheels
• Air pan
2. Product description
The drum filter consists of a PP basin containing a PP drum with
mesh. The drum is assembled gravitationally in a drain beside
the pond. The inlets are below the water surface level, and the
dirty water flows gravitationally through the floor drains or
skimmers into the first filtration chamber. On the outflow side,
the water flows through a slotted plate into the moving bed.
Because the dirty water flows through the drum, contaminants
in the water cling to the interior of the drum. As a result, less
water can flow through the mesh and the water level on the
outside of the drum sinks. The water level meter detects this
and initiates the flush cycle. This cycle consists of activating the
drum motor and spray pump. This causes the drum to rotate
while the sprayers rinse the mesh clean. The flush water then
flows into the sewage along with the waste. The cycle repeats
as often as necessary.
3. Assembling the filter
The housing of the filter consists of a PP basin with 2 partitions.
The first partition is fitted with a silicone sealing strip at the
flange which separates dirty water from clean. There are also 2
holes in the partition which are covered with a cap. In case of a
breakdown in the drum control, the covers can be removed to
enable the water to bypass the drum and flow past it without
being filtered. This enables you to still use the biological filtration
segment. The second partition has slotted holes that allow the
water to pass into the biological filtration chamber.
The basin is fitted with a removable waste drain. This can be
removed from the interior of the drum, which saves you the
trouble of having to disassemble the drainage line. The inclined
surface accelerates the water flow, causing the waste to be
carried along with it into the drain. The drum filter is fitted with
a removable spray tube made of PP, which is equipped with flat
jet nozzles. The sprayers feature a quick-release system, making
them easy to remove for cleaning. The water level meter inside
the basin consists of 3 electrodes:
1. flush cycle o (s)
2. flush cycle on (l/h)
3. common electrode (c)
The water level for initiating the flush cycle is adjustable. Inside
the basin is a high-pressure submersible pump which supplies
water to the sprayers under high pressure during the flush cycle.
The drum motor is installed inside the biological filtration
chamber inside the motor housing. The shaft is enclosed by
a retaining ring in the installation plate. The shaft connects to
the drum via a flange with a pipe. To remove the drum, you can
simply detach this pipe-shaft connection, after which the drum
can be taken out. You do not have to disassemble the motor to
do this. The screens can be removed by detaching the tension
straps and unscrewing the cover panel to remove it.
4. Instructions for use
The Filtreco combi drum filter and all parts and accessories
that it comes with may only be used as follows:
• for cleaning garden ponds
• according to the user manual and technical specifications
• only with water temperatures between +4 ˚C and +35 ˚C.
• only suitable for transporting water
• not for commercial or industrial purposes
• not suitable for salt water
• never use without running water
• never use in combination with chemicals, foods or flam-
mable/explosive liquids

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5. Safety instructions
This system may cause bodily harm or damage to property if
you do not use it properly and in accordance with all safety
guidelines, or if you attempt to use it for any purpose other
than that for which it was designed. This system must never be
operated by children or anyone under the age of 16, or by anyone
who has a physical, mental or sensory impairment or lack of
experience and knowledge, unless they are under supervision
and have been instructed on the safe usage of the system and
informed of the dangers associated with it. Children must be
made aware that this system is not a toy. Cleaning and mainte-
nance must be performed by an adult user. This must never be
performed by a child, even if they are under supervision.
5.1 Danger of electrical shock in contact with water
If your system has not been connected properly and in accor-
dance with the safety guidelines, and a live electrical current
comes into contact with water, this can result in electrical
shock, causing serious injury and even death. Always switch o
the current on any water-bearing equipment before you come
into contact with the water.
5.2 Guidelines for electrical installations
The electrical installation must be carried out in accordance
with all national legislation and may only be performed by a
nationally certified electrician. A person is considered an
electrician if they have the appropriate training, knowledge,
experience and certification, and are capable of assessing and
conducting the necessary work. The job of an electrical specialist
also includes recognising any possible hazards and complying
with all applicable regional and national standards, regulations
and provisions of law.
• For your own safety, always consult a professional electrician
in case of any problems.
• This system can only be connected to a power supply that
matches its electrical specifications. All specifications for
this system can be found in this user manual.
• The system must be protected by a residual current device
with a fixed residual current of max. 30 mA.
• Use only extension cables and power dividers that are
splash-proof and whose cable diameters are the same as
the ones supplied with the system.
• Do not allow the plug connections to come into contact
with water or moisture.
• Connect the system only to a power outlet that has been
installed according to industry standards and does not
contain a dimmer.
5.3 Safe use
• Never use this system in connection with faulty electrical
cables or a defective housing.
• Never pull on the cables to adjust the placement of the
system. Ensure that the electrical cables are not pulled
tightly.
• Lay the cables through a secure duct to avoid damage and
make sure no one can trip or fall over them.
• Only open the housing of the motor or other electrical
components if this is necessary as instructed by the user
manual.
• Only perform maintenance and other tasks on the system
as described in this user manual.
• In case of any problems that you are unable to resolve,
please contact Filtreco.
• Only use original spare parts in combination with this system.
• Do not attempt to modify the technical features or
specifications of this system in any way.
• The connector cables cannot be replaced. In case of a broken
cable, the entire system or aected part must be replaced
entirely.
• If used in the open air, a protective roof must be installed
above the control box.
• Over-voltage in the mains can cause the system to
malfunction.
• Do not inhale the spray mist from the sprayer system. The
spray mist may contain harmful bacteria.
• Once the flush cycle has completed, allow some time before
opening the cover.

8 Basic combi drum 25 (gravity)
6. Placement and setup
If you plan to install this system in a way that deviates
significantly from the recommendations in this user manual,
allow for a specialist to inspect the installation to ensure that
all technical specifications have been met.
The combi drum filter must always be placed in a level position.
The bottom of the filter must be completely supported. It is
recommended to place the system on a flat cement floor. When
positioning the filter, ensure that there is adequate space on
all sides so that you have room to perform maintenance. The
water level at which the filter must be placed is indicated by an
arrow in the first filtration chamber. This water level should be
maintained for a properly functioning filter system and should
not deviate by more than 2 cm below and 1 cm above. Any
greater deviation will result in an inaccurate measuring of the
water level. If the water level rises by more than 2 cm, the water
will overflow via the duct into the sewage system. To maintain a
constant water level, you can install an automatic filling station
with overflow function for your pond.
To ensure optimal water flow, use both inlet connections. It is
recommended to use flexible rubber sleeves when connecting
the water lines. These can compensate for small dierences in
dimensions and also absorb vibration.
Install slide valves or ball valves in front of and behind the filter,
so that the filter can be emptied during maintenance.
The drainage duct can be connected to a sewage connection
with a 110 mm diameter. Make sure that the duct is positioned
at an adequate incline. It is recommended to install a pipe with
a flexible rubber sleeve. These can compensate for small
differences in dimensions and also absorb vibration. They can
also be detached to remove the drainage duct.
Always use high-quality pipes with an adequate wall thickness.
Ideally, use 45 degree elbow connectors.
Lay the pipes at a downward angle so that they can be fully
emptied during the winter to protect them against frost.
Note! Electrical shock hazard. Use of this electrical system or
installation in connection with a (swimming) pond may result
in severe injury or death.
Only use this system in accordance with national and regional
regulations.
Always use suitable transport and lifting equipment when
transporting and assembling this system.
6.1 Connecting the control box
Ensure that the control box is not plugged in to the mains
power supply! Open the control box!
Hang up the box on 2 screws aligned with the grooves on the
back of the box. Space between the holes in the wall: b = 100 mm.
Remember that the length of the cable for the electrical equipment
is 3 metres. Be careful when opening the box and remember
that the screws you must loosen to open the door should not
protrude when you turn the box open. The same goes for when
you close the box.
6.2 Connecting the electrodes and water level meter
Ensure that the control box is not plugged in to the mains
power supply! Open the control box!
Turn the gland caps on the side of the box and slide them over
the corresponding cable. Run the cable through the cable gland
into the box, leaving adequate length. Then twist the gland caps
closed again. Connect the electrodes as shown below using a
suitable screwdriver. The labels on the electrodes match the
codes on the connection inside the box.
• the L/h cable goes into the B2 connection
• the S cable goes into the B1 connection
• the C cable goes into the B3 connection

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7. First use
Before using the combi drum filter for the first time, it is advisable
to thoroughly clean the pond manually and flush the pipelines
if possible. This will prevent the newly started filter from having
to repeat multiple flush cycles in a row.
Note! Electrical shock hazard.
• Always switch o the current to the system before coming
into contact with the pond water.
• Secure the system to prevent it from unintentionally being
switched on.
• Never connect the system to a power supply that is fitted
with a dimmer.
• Do not use the system in combination with a switch that
has a timer function.
• Only switch on the control box if the pump is below the
water level and the electrodes are below the surface.
7.1 Sequence for first use
• Remove the cover from the filter.
• Check all the water inlet and outlet connections.
• Check the line from the pump to the spray tube to ensure
it is hand-tight.
• Close the valves on the outflow side.
• Open the slide valve in the in-flow line.
• Fill the pond and filter until the maximum water level is
reached.
• Adjust the placement in case the water level is not reached.
• Check all the water inlet and outlet connections again.
• Plug the connectors into the corresponding power sockets:
The plug for the spray pump goes into the connection point
labelled "pump".
The plug for the drum motor goes into the connection point
labelled "motor".
7.2 Adjusting water level meter
The water level meter consists of 3 stainless steel electrodes:
• The "flush cycle o" electrode (the short coated electrode)
• The low-level/"flush cycle on" electrode (the long coated
electrode)
• The common electrode (the long uncoated electrode)
The flush-cycle electrodes are set to the lowest level by default.
This means that the filter is flushed whenever the water surface
level drops by about 220 mm.
The flush cycle ends as soon as the water level rises back to the
high-level electrode.
If you would like for the flush cycle to take place sooner, you
can unscrew the holder and place it higher up. After replacing
the holder, tighten the cable glands again.
Note!
The short electrode must always be approximately 20 mm
below the surface of the water, measured when the water
pumps are switched on! If this is not the case, then there is
a risk that the water level will not rise to reach the short
electrode after the flush cycle completes. As a result, the filter
will continue to flush and the water level of the pond will drop
significantly!
To prevent this, the short electrode must always be at a
sufficient depth below the water surface. You must also ensure
that the incoming flow is sucient to feed the pump that is
sucking the water out.
If the pond's water quality is such that the flush cycle lasts less
than 3 minutes, then the flow into the drainage duct must be
reduced to ensure that the cycle lasts for more than 3 minutes.
After the contamination in the pond has decreased, the throttling
in the drainage duct can be gradually reduced as long as you
allow for the flush cycle time mentioned above.

10 Basic combi drum 25 (gravity)
8. Control box
The control box consists of a housing with:
• 2powersockets,namely:
- Pump for the high-pressure submersible pump
- drum motor for the drum motor
• 3buttons:
- Manual: for a manual flush cycle.
- Main Switch: to switch the power supply to the box on
and o.
- Reset: for replacing a fuse.
The control box also includes 2 cable glands for the power
supply cable and the throughput for the cable for the water
level meter.
9. Cleaning and maintenance
Note! Electrical shock hazard! This can result is severe injury
or death.
When performing cleaning and maintenance, always take the
following measures:
• Always switch o the power supply and secure it from
being accidentally switched back on before you come into
contact with the water or perform any maintenance work
on the system.
• General cleaning - 1x each month:
- Switch o the "Main switch" and unplug the system from
the mains power supply.
- Remove any coarse waste (such as algae) on the
inside of the drain.
- Clean the inside of the drum.
- Clean the water level meter electrodes.
• Cleaning the sprayer heads - 2x per month:
- Remove the sprayer head by turning it to the left
to unscrew it from the quick-release fastener.
- Remove the gasket from the holder.
- Remove the right-angle sprayer from the connector.
- Clean it.
- Install the gasket and sprayer back into the holder.
- Turn the holder onto the clamp bracket.

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• Complete cleaning:
- Switch o the "Main switch" and unplug the system from
the mains power supply.
- Close the inlet and outlet spouts and drain the water
through the valve until the filter is empty.
- Remove the drain and clean it thoroughly.
- Remove the drum and brushes and clean them
under running water.
- Remove the spray pump and clean it thoroughly.
- Clean the entire inside of the filter.
• Disassemble the drum as follows:
- Disassemble the spray tube by unscrewing the
connector and removing the drain from the tube clamp.
- Disassemble the drain by loosening the bolts.
Be careful not to lose the gasket and gasket rings!
- Turn the drum until the bolt from the shaft connection
is on top. Remove this bolt.
- Slide the drum slightly towards the partition until the
tube is separated from the shaft and then
carefully lift the drum at an angle upwards
out of the silicone seal. Lift the drum out
of the filter basin. Carefully set the drum down to
prevent damage to the screen.
• Assemble the drum as follows:
- Carefully lower the drum into the filter and
set its flange on the shafts of the partition.
- Press the silicone seal into the flange of the drum on
all sides, using your hand.
- Slide the drum with the flange side over the shaft.
- Turn the drum around the shaft until the hole in the shaft
is positioned underneath the hole in the tube. Reinsert
the M8 x 15 bolt and screw it tightly.
10. Troubleshooting
• No water flow:
- Check whether the (slide) valves are open.
- Check whether the water pumps are connected.
- Check whether the inlet or outlet is clogged.
• Insucient water flow:
- Check whether the inlet or outlet is clogged.
- There are not enough inlet connections installed.
- The circulation pump does not have enough capacity.
- There is dirty water and particles in the clean water side
outside the drum: check the seal between the partition
and the flange of the drum.
- A fuse has blown. Turn the Reset knob and replace the
fuse if necessary.
11. Winterising
To ensure proper functioning of the system, do not allow the
water temperature to decrease below +4 degrees Celsius.
Measures that you can take:
• Place a cover or lid over the drain.
• The control cannot withstand freezing temperatures. Be
sure to place it in a location that is protected from rain
and frost.
In case water temperatures drop below +4 degrees Celsius or
there is a chance of freezing, discontinue using the system.
• Drain the system and clean it according to the instructions
• Allow the surrounding pipes to drain
• Leave the valves open
• Protect the pipes and other components from frost if
necessary.
12. Wear parts
The following parts may be subject to wear:
• Silicone drum seal Order number 100744
• Retaining ring Order number 100757
• Drum screens Order number 100700
13. Technical specifications
• Operating voltage: Vac 230V
• Plug: 16 A Euro plug
• Total power output: 800 Watts
• Cable length: 3 m
• Drum diameter: 40 cm
• Drum length: 40 cm
• Max. flow: 25 m3/h
• Weight: 40 kg
• Height above water level: 175 mm
• Min. water level: 20 mm below the line
of the arrow
• Max. water level: 10 mm above the line
of the arrow
• Number of panels: 1
• Number of sprayers: 4
• Min. time between
2 flush cycles: 3 minutes (otherwise the
motor will overheat)

12 Basic combi drum 25 (gravity)
14. Technical diagram

13www.filtreco.nl
15. Diagram for assembly in a pond
P

14
Filtreco
Nusterweg 69
NL-6136 KT Sittard
The Netherlands
CoC 14052952
VAT NL 58.28.235.B01
[phone]
info@filtreco.nl
www.filtreco.nl
Filtreco is a WTH B.V. brand.