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Japanese Koi Carp at sensible prices

Dormer Cottage, Spurgrove Lane, Little Frieth,

Nr. Henley on Thames, Bucks, RG9 6NU

Phone/Fax: 01494 882600

Order Hotline: 07814 011357

Koi Pond Filter systems - Bead Filters

At Koi Water Garden, we are able to offer competitive prices on not only high quality koi, but also on koi related goods such as the very best bead filters.

We supply the best Bead filter currently available, the Econobead range.


last updated 22nd October 2014

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How to choose the right filter


Special package prices


Interested in any Filter + pump, + UV and Air pump ? Special package prices are available - the more you buy the better the component prices become! Ring or email for package prices.


Introduction to the principle of bead filtration


Bead filters are closed (pressure) vessels filled with millions of small plastic beads. These beads float and therefore provide a means of mechanical filtration and the enormous surface area of these beads provides the biological filtration.


Mechanical filtration: the beads float in a closed vessel and are packed very close to each other. The pressure of the pump makes the water flow upward through the beads. The small dirt particles will stick in the bead pack. The longer the filter is active, the more bio film there will be around the beads and therefore smaller particles can be filtered.


Biological filtration: the specific surface of the beads is about 1600 square metres per cubic metre of media (6 times more than a sheet of Japanese Matting), so the bio film layer around the beads is the home for the nitrifying bacteria (the biomass)that convert ammonia into nitrite and nitrite into harmless nitrate.


 Econobead Filters


The EconoBead Bead filters are the economical answer to imitation filters, made by the Beadfilter experts!


The EconoBead Beadfilters have a strong quality polypropylene vessel and are standard equipped with:

  •  A drain valve to remove the sludge from the bottom of the Econobead
  •  A 6 way valve
  •  A very reliable blower!
  •  The blower is also equipped with a silencer.
  •  Optional low pressure bypass kit available to enable use of low pressure pumps


The EconoBead Beadfilter is now available in 5 sizes for ponds 2000, 4000, 6000, 12000 and 20000 Gallons. Equipped with a large clear lid for easy access.


  •  All EconoBead Beadfilter models are standard equipped with a 2” multi-port valve, a transparent access cap and a powerful blower.
  •  EconoBead Beadfilters are constructed from high quality polypropylene conforming and are completely save for your fish.
  •  The EconoBead Beadfilter comes with a warranty period of 5 years on the pipe and fitting system and a warranty period of 10 years on the body and beads.



Filter: water enters the EconoBead filter and goes upward through the beads and exits out of the vessel via the top spray bar to return to the pond.


Recirculate: : With the “RECIRCULATE” feature you can bypass your EconoBead filter and the water will flow from pond to pump to multiport valve and back to pond.


Waste:  This position allows the water to bypass the EconoBead filter and go directly to waste, such as when you are performing a backwash cycle. You can also use the waste setting to vacuum out your pond without the garbage going into your filter, it bypasses the EconoBead filter via the multiport valve and flows to waste.


Rinse:  The first time we use the RINSE feature to wash the beads with the blower this forces large amounts of air into the vessel and since air rises in water, the beads are broken apart by this action, making a thorough backwash easy to accomplish. After the backwash function we use the RINSE feature again but now with water instead of air. It is impossible to get every little bit of debris out of a filter and this causes these minute particles to exit in the waste line instead of going back into the pond.


Backwash: In this position we let the pump run until the water in the sight glass is clear (normally one to two minutes) The water enters the filter from the top spray bar (C) and exits the vessel at (A) and goes to waste.


Low pressure bypass kit for Econobead filter


Econobead Filters

Backwash Instructions

 1. With the pump running open the valve to the sludge drain. Keep it open for 15-20 seconds, and then shut it. This will purge the large solids that have made it into the EconoBead filter and settled out in the bottom of the tank to waste. It is very important to remove these solids from the system for overall water quality and more efficient filter operation. *IMPORTANT* Do not open the sludge drain valve with the pump off, as you may loose beads to waste if water is allowed to drain out this valve.


 2 Turn off pump.


 3. Move multiport valve to rinse. Air will go out of the EconoBead filter to waste and a small amount of water when blower is activated.


 4. Activate blower unit for 1-2 minutes. During this time the beads and debris is dispersed throughout the interior of the EconoBead filter. This breaks up all trapped particles in the filter allowing the debris to be easily backwashed out to waste.


 5. Move multiport valve to backwash mode. Turn pump on and run until backwash water is clear. Turn pump off.


 6. Move multiport valve to rinse feature. Turn pump on and run until water is clear. This takes any leftover debris that would have gone back into the pond and sends it to waste instead of sending a grunge cloud of debris back into the pond. Turn off pump.


 7 Move multiport valve back to EconoBead filter position and restart pump. You’re done. After you become familiar with the backwash process you can accomplish the backwash cycle completely in about 4 or 5 minutes. Every pond is different; however most people find that backwashing needs to be done once or twice a week.




Height and Diameter 

Recommended Pond Size 

Max Fish Loading (kg) 

Media volume kg 


68 x 40cm 

2,000 galls (9000 litres) 




75 x 50cm 

4,000 galls (18000 litres) 




85 x 60cm 

6,000 galls (27000 litres) 




113 x 75cm 

12,000 galls (55,000 litres) 




126 x 90cm 

20,000 galls (90,000 litres) 





Econobead 40 


Econobead 50 


Econobead 60 


Econobead 100 


Econobead 140 


Low Pressure Bypass kit 


Spare Blower 





Left: Low Pressure bypass kit for Econobead Range

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