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b) Cleaning the sera

ne mesh

lter sponges (2.6)

The

sera

ne mesh

lter sponges must be washed out thoroughly and reg-

ularly during the period of strong algae growth. Take the split sieve out to
do so, as described in a). The big

sera

ne mesh

lter sponge is located

underneath the split sieve. First pull out the

sera

over

ow pipe upwards

before you take the

sera

ne mesh

lter sponge out. Now hold the

sera

ne mesh

lter sponge, preferably with both hands, and lift it out of the

sera KOI Professional 24000 Pond Filter

. The small

sera

ne mesh

lter

sponge is located underneath the big

sera

ne mesh

lter sponge. Remove

this sponge as well. Avoid carrying or lifting the

sera

ne mesh

lter spong-

es by the over

ow opening.

Put the big

sera

ne mesh

lter sponge in a suf

ciently large tub and wash

it out thoroughly. Do not use any detergents, but only lukewarm water.
Clean the small

sera

ne mesh

lter sponge in the same way. Depending

on the strength of

oating algae growth, this may be necessary daily in or-

der to maintain full puri

cation performance of the pond

lter system.

When there is little

oating algae growth, the pond

lter should be operat-

ed without the

sera

ne mesh

lter sponges. The specially developed over-

ow system provides effective protection against over

ow of the pond

ter in case you forgot to clean the

sera

ne mesh

lter sponges. Put the

sera

ne mesh

lter sponges back into the

sera KOI Professional 24000

Pond Filter

as described in the assembly instructions after you have

cleaned them.

c) Cleaning the Matala mat (2.4.1) and the bio chamber (2.4.2)

•

Disconnect all electrical components from the mains/power supply
(UV-C system, pump, etc.) in and around the pond. Lift the upper part of
the

lter casing (1.4) off the bottom part. Place the upper part onto a

plain surface and avoid knocking over the upper part. Remove the Ma-
ta la mat. Rinse the Matala mat with a hose against the

ow direction in

the

lter.

•

A bio chamber with

sera siporax pond

is located underneath the Ma ta-

la mat. Remove the nets and rinse it in a bucket with lukewarm water.
Do not use any detergents as to prevent the bacterial

ora from being

destroyed. Only surface sludge must be removed from

sera siporax

pond

. The clear water chamber must remain free (2.4.3).

•

Wipe out the empty bio chamber with a soft sponge and rinse it with wa-
ter. Put

sera siporax pond

and the Matala mat back in place. Put the

upper part of the

sera KOI Professional 24000 Pond Filter

back onto

the bio chamber after cleansing. Switch on the pump and put the UV-C
system back into operation after 30 minutes.

•

The outlet of the

sera KOI Professional 24000 Pond Filter

must not be

clogged. The outlet (2.4.4) must remain free

owing and must not be

throttled.

The maximal

ow rate through the

sera KOI Professional 24000 Pond

Filter

should not be higher than once the total pond volume per hour. A

ow rate of approx. a quarter of the pond volume per hour is recommend-

ed for optimal biological puri

cation.

The maximum

sh stock should not exceed 50 cm (approx. 20 in.) of

per cubic meter.

The

sera KOI Professional 24000 Pond Filter

can be operated with the

pond pumps listed in the following for different pond sizes:

sera pond pump PP

sera KOI Professional

24000 Pond Filter

SAFETY PRECAUTIONS

Warning: Dangerous ultraviolet radiation!

Never look directly into the special UV-C lighting (lamp) when it is operat-
ing (eye damage!).
Lamp function control through the two viewing glass panes at the top of
the UV-C casing or through the hose nozzle: Goggles (UV-C protecting
glass) provides suitable additional protection.
•

The special

sera

UV-C lamp may be operated only inside the complete-

ly assembled

sera pond UV-C System

(please refer to directions for use

for information about readiness to use). Every other use may lead to very
severe skin and eye damage!

•

Always keep UV units and UV-C lamps out of the reach of children!

•

All electrical units in and around the pond must be disconnected from
the power/mains supply before conducting work at/in the pond and on
the

sera KOI Professional 24000 Pond Filter

•

Operate unit only with an inserted fault current protection switch (RCD
or FI with a trip current of 30 mA).

•

Do not operate if unit is submerged!

•

Usage in or at swimming pools, walk-in ponds or swimming ponds is not
permitted!

•

Never operate the UV-C system without water

ow! First connect the

sera KOI Professional 24000 Pond Filter

to a pump as described in the

instructions for use.

•

For stabilizing its standing it may only be operated when the bottom
chamber is suf

ciently

lled, e.g. with

sera siporax pond

•

Ensure that there is suf

cient water

ow through the

sera pond UV-C

System

before switching on the UV-C lamp. A minimum

ow rate of at

least 2,000 l/h (530 US gal./h) up to 12,000 l/h (3,170 US gal./h) at the
maximum must be ensured also during operation.

•

At the

rst sign of frost, disconnect and drain the

sera pond UV-C Sys-

tem

, and store in a frost-free location (without water or water remain-

ders). We recommend thorough cleaning before winter storage.

•

Frequent “ON/OFF” switching reduces the life expectancy of the UV-C
lamp.

•

Ensure that the electrical plug of the switched-on unit is freely accessi-
ble at all times.

•

The test run according to the section “Assembly and operation” must be
carried out before putting the UV-C system into operation!

Winter operation:

In case of occurring frost, the UV-C unit must be dis-

mounted and stored in a frost free location inside the house. The waste wa-
ter removal valve on the waste water chamber should be taken off. Please
refer to the instructions for use for information about winter operation of the

sera pond pump PP 12000

•

Using this device differently than according to this information for use is
not permitted and takes place at your own risk.

•

Damages to the device or other objects that were caused by misuse are
not covered by warranty.

Technical Data
sera KOI Professional 24000 Pond Filter

Height approx.

100 cm (3.3 ft.)

Width approx.

65 cm (2.1 ft.)

Length approx.

108 cm (3.5 ft.)