The Koi Pro Combi Drum 30.000 is a low-maintenance pre-filter and biological filter system in 1. This self-cleaning Combi Filter ensures healthy, clear water without the user having to perform daily maintenance. Available in 2 models for installation as Gravity or Pump-fed Drum Filter.

Function

Complete low-maintenance 2-chamber filter system, consisting of a chamber with a drum filter and UVC, including a

chamber for biological filtration. The drum filter works as a pre-filter removing dirt from of the water using a sieve

mechanism. If the screen is saturated with dirt, an automatic spray system rinses the screen clean and the dirt runs into

a drain. The built-in UVC reduces algae growth. The biological chamber can be optionally filled with Japanese matting or

Aqwise filter media for floating bed filtration.

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Installation

Fig. B Determine the location of the filter. Provide a dry sheltered place (not in direct sunlight) and a stable flat surface

with sufficient space around for maintenance.

• NOTE! A gravity filter must be installed at the same level as the pond water. We recommend you install the filter

in housing below ground next to the pond. Installing a gravity filter is specialist work that must be carried out

carefully and with the correct materials (connectors, pipes, etc.). Ask for advice from your pond specialist or

engage an installation company.

• The height of the minimum/maximum water level of the filter is marked on the partition panel of the filter (i).

Place the filter at such a height that the maximum water level in the pond never exceeds the maximum water

level in the filter.

• Place a pump suitable for dry installation (max. pump capacity 17,500 L/h) “behind” the filter.

• Connect the pump to one of the filter outlets (b) (ø 110 mm) using a flexible socket. Close the other outlet with a

flexible endcap.

• NOTE! The pipe connections (ø 110 mm) on the filter can NOT be glued, use flexible rubber sockets.

• Connect both inlets (a) (ø 110 mm) to the pipes to the bottom drains and skimmer in the pond using flexible

sockets.

• Connect the drain channel (c) (ø 110 mm) to a drain (e.g. sewer) using a flexible socket.