Pond Filtration » Fluid Bed Filters

Cloverleaf Fluidbed Filters

The usual dilemma of very high fish stocks is the overloading of an existing filter system has frequently meant replacing the entire system or adding to it in a conventional manner, but often the case is that there is insufficient floor space (or finances) to execute either option.

This is where the economical Cloverleaf Fluidised Bed filter fully comes into its own, and providing that the existing system can adequately cater for mechanical filtration, then a vast improvement in water quality parameters will be evident.

The ability of Cloverleaf Fluidised Bed filters to biological cater for extremely high level fish loads has been well documented, as have the wear and short life problems encountered by some companies producing such devices back in the year 2000. Only now after considerable field and laboratory research can Cloverleaf offer the very best in FB’s – assisted greatly by the unique specification of silica sand used, and which is scientifically known to offer superior bacteria colonisation than that achieved by coral sand and other common types.

To put into perspective, studies would indicate that the unique Cloverleaf biomass silica media has such impressive properties that 3kg can support the same volume of beneficial bacteria that might otherwise only be achievable if using 50 sacks of average filter rock or gravel.

Cloverleaf FB’s are manufactured in 3 varying sizes, and are available in two designs – (1) Pumped with gravity return (2) Pumped with pressurised return. Unlike some other manufacturers products the Cloverleaf range incorporates a non return valve to prevent the loss of sand via any siphoning actions.

As a guide to flow rates and application of use, approximately 10% of the ponds volume should be directed through the Fluidised Bed filter. By the nature of design and media used FB's should only be installed on existing mature ponds where adequate mechanical filtration also exists

M25 Fluidised Bed Filter up to 2500 gallons

Ideal for under filtered or overstocked ponds.

Designed to biologically consume waste products generated by fish in the pond, with constantly moving filter media, ensuring the entire area is colonised with essential denitrifying bacteria.

For use on mature ponds only (over three months), in conjunction with a mechancial filter. There is no maximum flow rate, providing the Biomass is not pushed beyond the transparent section.

Available in three sizes and either as a gravity return or pressure return system.

The M25 gravity return FB unit will cater for heavy stocked ponds: up to 2,500 gallons (11,250 litres), and is best served from a high pressure pump offering around 470gph (like Blagdons Amphibious P2000) – with final operational flow rates of around 250gph.

unit size: approx 600mm high (24”) with a 110mm (4”) diameter core containing 3kg of silica sand, together with standard 38mm (1.5”) inlet pipe manifold including a Cloverleaf Side Valve on the inlet side, together with a non return valve.

Outlet/gravity return is for 50mm (standard 2") rigid pipework.

The M25 will support up to 50kg (110lb) of fish load.

M25P Fluidised Bed Filter up to 2500 gallons

Ideal for under filtered or overstocked ponds.

Designed to biologically consume waste products generated by fish in the pond, with constantly moving filter media, ensuring the entire area is colonised with essential denitrifying bacteria.

For use on mature ponds only (over three months), in conjunction with a mechancial filter. There is no maximum flow rate, providing the Biomass is not pushed beyond the transparent section.

Available in three sizes and either as a gravity return or pressure return system.

The M25P pressurised FB unit will cater for heavy stocked ponds up to 2,500 gallons (11,250 litres), – with an ideal final operational flow rate of around 200/250gph.

Unit Size: approx 600mm high (24”) with a 110mm (4”) diameter core containing 3kg of silica sand, together with standard 38mm (1.5”) pipe manifolds including 2 ball valves. The bottom valve is used to control flow and balancing, with the top valve offering the close down facility to act as a byepass to the FB.

The M25P will support up to 50kg (110lb) of fish load.