Koi pond mechanical filtration

Automatic Koi Pond Drum Filters for Low-Maintenance Clear Water

For koi pond owners and installers who need suspended-solids removal without repeatedly cleaning a filter screen by hand. Pursun’s self cleaning pond filter combines a rotating 316L screen with an automatic wash cycle.

Remove suspended solids automatically before they continue through the pond filtration system.

Koi pond owners · Pond builders · Garden pond installers

The filtration problem to solve

Why Use a Drum Filter for Koi Ponds?

A koi pond drum filter addresses the suspended-solids stage of pond filtration. It works alongside correct circulation and biological filtration rather than replacing them. For a broader product explanation, see the drum filter page.

Particles remain in circulation

Fish waste, residual feed and other suspended material can continue through the pond when the mechanical stage does not capture and discharge it efficiently.

Water does not look as clear as expected

Separating visible solids before downstream treatment supports the clear-water appearance expected in a landscaped koi pond.

Screen cleaning takes too much routine attention

An automatic wash cycle cleans the screen and moves collected material toward the waste outlet, reducing repeated hands-on screen washing.

How the drum filter works

How a Koi Pond Drum Filter Works

The rotating screen separates suspended solids from the pond-water flow. The cleaning system then removes captured material from the screen and directs it toward the waste outlet.

Step 01 · Mechanical separation

Solids collect on the screen

Pond water passes through the 316L stainless-steel filter screen while suspended solids remain on the screen surface. Removing these particles at the mechanical stage reduces the solids passed to downstream pond treatment.

Step 02 · Drum movement

The drum brings captured material to the cleaning area

The drive motor rotates the drum so the loaded section of screen reaches the spray-cleaning and waste-discharge area. The final operating logic depends on the selected configuration and pond conditions.

Step 03 · Automatic screen cleaning

Spray nozzles wash the screen

During the automatic cleaning cycle, spray nozzles remove captured solids from the drum screen and direct the waste toward the outlet. This reduces routine manual screen cleaning and helps keep the mechanical-filtration surface available for water passage.

Product advantages

Maintenance Advantages for Koi Pond Owners

The main value is practical: remove suspended material earlier, reduce routine screen-cleaning work and keep the mechanical stage operating as intended when the system is correctly sized and installed.

01 Supports clearer circulating water

The drum screen captures suspended material before it continues through the pond system, supporting the visual clarity expected in koi and garden ponds.

02 Reduces routine manual screen cleaning

Automatic backwash removes captured material from the screen, reducing the need to remove and wash the filter surface by hand during normal operation.

03 Automates the screen-cleaning cycle

The drum rotation and spray-cleaning components work together to move solids toward the waste outlet. Cleaning frequency depends on the control arrangement and pond load.

04 Supports consistent mechanical filtration

Keeping the screen surface cleaner helps maintain water passage through the mechanical stage. Correct sizing, installation and regular equipment checks remain important.

Application images are illustrative and are not presented as named Pursun customer projects.

Buyer decision information

Pond Size and Flow Selection Guide

A model name alone is not enough for selection. Share pond volume, required circulation flow, koi load, feeding conditions, pipe layout and installation space so the filtration configuration can be matched to the actual pond.

1. Pond volume and fish load

Provide total pond volume together with the expected koi quantity, fish load and feeding conditions. These factors affect the solids load entering the filter.

2. Required circulation flow

State the required operating flow and, for an existing pond, the current pump flow. Pond volume and flow rate should be treated as separate selection inputs.

3. Hydraulic connection

Provide the water level, pipe sizes, current filtration layout and whether the proposed arrangement is gravity-fed or pump-fed. Photos or a simple plumbing sketch are helpful.

4. Installation and export requirements

Confirm available footprint, service access, waste drainage, wash-water arrangement, electrical supply, quantity and destination country before quotation.

Product specification overview

Installation Configuration and Product Options

The product knowledge base identifies the following cataloged koi pond families. Final dimensions, ports, electrical data, included components and suitability are confirmed by selected model. For commercial koi breeding or aquaculture-style systems, review the RAS filtration system page separately.

Product family

Koi Pond Microfilter — PP Standard

Model range

10T–30T groups

Application

Koi and garden pond mechanical filtration

Configuration notes

PP enclosed configuration with automatic backwash and 316L screen.

Product family

Koi Pond Microfilter — PP Upgraded

Model range

6T–30T

Application

Compact pond filtration

Configuration notes

Upgraded wash components; exact pump and nozzle package is confirmed by model.

Product family

Koi Pond Microfilter — All-in-One

Model range

6T–30T

Application

Space-saving multi-stage pond filtration

Configuration notes

Additional treatment chambers in one layout; included functions are confirmed by model.

Selection note: “T” is retained as a catalog model designation. This page does not interpret it as a guaranteed flow rate or pond-volume rating.

Frequently asked questions

Koi Pond Drum Filter FAQ

How does a koi pond drum filter work?

Water passes through a rotating screen that captures suspended solids. During the automatic wash cycle, the drum rotates while spray nozzles clean the screen and move removed material toward the waste outlet.

How do I size a drum filter for my koi pond?

Model selection should consider pond volume, required circulation flow, fish load, feeding conditions and the existing filtration layout. A model designation should not be treated as a guaranteed pond-volume or flow rating without reviewing the specific configuration.

What information is required for a quotation and model selection?

Please send pond type, pond volume, required flow rate, fish load, current filtration system, pipe sizes, water level, available installation space, electrical supply, quantity and destination. For an existing pond, include photos or a simple plumbing sketch and the current pump flow.

How often does the filter clean itself?

Cleaning frequency depends on the selected control arrangement, pond conditions and solids load. Pursun confirms the model-specific setup during technical selection; this page does not state a fixed cleaning interval.

What regular maintenance is still required?

Automatic backwash reduces routine screen cleaning, but owners should still inspect the screen, spray nozzles, waste channel, pump, motor, controller and pipe connections according to the selected model’s instructions.

Can the filter be added to an existing pond?

It can be considered for many filtration upgrades, but the connection method depends on the current water level, pipe sizes, pump flow, available space and whether the layout is gravity-fed or pump-fed. These details should be reviewed before model selection.

What installation conditions are required?

Plan for suitable inlet and outlet connections, a waste drain, the required wash-water arrangement, electrical supply, stable placement and access for inspection and maintenance. Exact connections and included components are confirmed for the selected model.

How is the drum filter shipped internationally?

Packing, freight method, shipping terms and destination requirements are confirmed with the selected model and quotation. Send the delivery country, quantity and preferred trade terms so the shipment can be discussed without assuming a fixed package or transit time.

Can spare parts be included with an international order?

Spare-part availability and any recommended spare package depend on the selected model and order scope. Ask for the relevant parts list before ordering so included items, quantities and pricing can be confirmed in the quotation.

What installation support is available for overseas buyers?

Before ordering, send pond data, photos and connection information so Pursun can clarify model-selection inputs and product connection requirements. Any drawings, manuals or additional installation-support scope should be confirmed with the quotation for the selected model.

Request model selection

Request Pond Filtration Recommendation

Jiangxi Pursun Tech Co.,Ltd. will use your pond type, volume, required flow and installation information to discuss a suitable koi pond drum filter configuration and quotation.

Request Pond Filtration Recommendation

Include your pond type, current filtration, pond volume, required flow, country and installation photos if available so the inquiry can be reviewed more effectively.

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