Sander Fresh-Skim 500 User manual

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
1
Fresh Water Protein Skimmer
Fresh-Skim 500
Skimming System in connection with air pump and water pump
Range of application/ Mode of operation:
The Fresh Skim 500 is suitable for garden ponds or breeding basins up to 140 m3.
This highly efficient skimmer is operated in a bypass mode, e.g. not the whole contense of
the pond (basin) will be let through the skimmer in one run. It should be placed so that it
will be fed directly from the relevant reservoir.
The skimmer must be installed in such a way that it can be fed constantly with approx. 18
m3/h water.
By pumping air through ceramic air stones, fine bubbles are produced, creating a foam
which will finally carry out protein and dirt particles into the foam beaker.
The water flow is created by a feed pump installed by the customer.
The foam beaker can take up a great amount of foam; for a continuous outflow connect
the foam with a drain. To prevent residual ozone from escaping a siphon has to be
installed.
If you use ozone we recommend to controle the redoxpotential (between 300-400mV) at
the water outlet of the skimmer.

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
2
Installation
Note: the skimmer is not frost prove.
a) Place the Fresh Skim beside the biological filtration unit on even and level ground to
guarantee the stability of the system.
b) Make sure there is no tension or weight on the piping.
c) Connect the water pump (delivery ca. 22 m3/h) to the water inlet of the skimmer. We
recommend using a flow meter (2500 - 25000 l/h). Please do not install an extra filter
as it changes the water passage and so might cause deviations of the water level. In
this case the skimming process gets unstable.
d) The water outflow operates pressureless, the ventilation pipe mounted to the water
outlet prevents the skimmer from heaving empty.
e) Connect the air pump (delivery ca. 5 - 10 m3/h) with a flexible tube to the air inlet of
the skimmer. Again, we recommend the use of an air flow meter (ca. 2000 - 15000 l/h).
f) The foam beaker can take up a great amount of foam; for a continuous outflow
connect the foam with a drain. To prevent residual ozone from escaping a siphon has
to be installed.
g) The use of ozone increases the foam production.
When using an ozonizer connect it with the “bypass” of the air leading tube. The ozone
leading pipe coming from the ozonizer has to be connected with the upper connection
of the “bypass”.
An amount of 10mg ozone/200l fresh water is recommended. Connect the ozonizer
with the upper inlet of the bypass system.
If the system is operated without the use of an ozonizer, the connection has to be
closed.
h) For the extinction of residual ozone elements a rest ozone decomposer should be
installed. Attach the decomposer with a flexible tube (Teflon or PVC) to the lid of the
foam beaker.
i) Please follow these instructions carefully. The producer cannot be held responsible for
any water damage.

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
3
Start-up and adjustments
Before start-up all connections (water, air, ozone, mains supply) must be installed in
accordance with the usual guideline.
1) Close the water inlet valve. For filling and operation open slowly.
2) Open water outlet completely.
3) Turn on water pump
4) Turn on air pump.
5) Adjust amount of air to 5000 - 10000 l/h.
6) If you use ozone, adjust the air flow with the help of the adjustment valve air flow.
7) Turn on ozonizer.
8) Adjust water level with the help of inlet and outlet valve, so that the desired amount of
foam can be drained off continuously.
9) Depending on the degree of pollution, there will be either a thick foam or big bubbles.
Adjust the skimmer to a degree where the bubbles will burst at the rim of the foam
tube and so throw out the protein/dirt particles.
10) Re-adjust the air flow if necessary.

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
4
Maintenance
1) Empty the foam beaker daily.
2) Clean the foam tube regularly.
3) Replace the air stones once a year. Wooden air stones are not to be used because of
the high amount of ozone necessary for this operation.
Before changing the ceramic air stones, turn off the ozonizer and operate the skimmer
for a few minutes with air only. This is to make sure that no ozone is left in the air
stones.
To change the air stones loosen the nuts of the skimmer head and take off the foam
beaker. Now the inner unit complete with tube and air stones can be taken out.
Caution: never touch the ceramic air stones with bare hands !

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
5
Important: Pipe connections must be free of tension
Example
Protein-
skimmer
Pipe clamps

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
6
Skimmer Fresh-Skim 500
Modell
Fresh-Skim 500
Anlagen Nr.
Unit no.: 2296
Volumen
Volume m30,3
Wasserdurchsatz
Flowrate m3/h 22
Verweilzeit
Retentiontime min 0,8
Wasserdurchsatz
Flowrate m3/h 18
Verweilzeit
Retentiontime min 1
Bauhöhe .ca.
Total height mm 2100
Grundfläche
Basal area mmxmm 750x825
Höhe der Wassersäule
Height of water column mm 1600
Luftansaugmenge
Air suction capacity m3/h 6,2
All measures and data approximatly. Changes reserved

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
7
3
LP
ca. 5000 -
10000l/h
optional
optional
LP
optional
optional
optional
freshwater ozone reactor /protein skimmer
Ozonizer
partstream
ca.22 m
restozone decomposer
Ozone
ventilation
waste
water
to
biological
filter system
redox
compressors
Flowchart Fresh Water Protein Skimmer
siphon
water
outlet

Instruction for Use
Erwin Sander Am Osterberg 22 Tel.: [phone]
Elektroapparatebau GmbH D-31311 Uetze-Eltze Fax.: [phone]
Internet: http://www.aqua-sander.de e-mail: [email protected]
8
ceramic air
stones
drainage
(d32)
connection
external air supply
foam tube
connection
ozonizer
air flowmeter
adjustment valve
water outlet
connection
rest ozone
aeration
water outlet
(d90)
water inlet
(d50)
foam outlet
(d50)
adjustment valve
air flow
reaction tube
foam beaker