Compact pressurized filter for ponds and water gardens
Biological and mechanical filtration keeps pond water clean
Turn "grip-n-twist" handle for easy cleaning of pond filter sponge
Ease of filter upkeep means peak pond conditions. The Little Giant Pressurized Bio Filter with "grip-n-twist" handle lets you clean your pond filter sponge without having to remove the filter lid. This time-saving feature makes it virtually effortless to ensure proper filter operation. Workhorse performance delivers excellent biological and mechanical filtration. Mechanical filter sponge boasts high surface area to trap solid waste for pond water clarity. Bio-ball biological filter media allow the development of beneficial bacteria that break down toxic pollutants such as ammonia and nitrite. The result is a pond that's cleaner, clearer, and healthier for your pond inhabitants. Includes sponge media and bio balls, hose adapters, o-ring, hardware and full instructions. For ponds up to 2,400 gallons. Requires appropriately-sized pump and tubing, sold separately.
Pond Size (gallons)
Max. Pump Flow Rate(gph)
14.25" x 14.75" x 12" high
14.25" x 14.25" x 18" high
15" x 14.25" x 26" high
1" hose adapters ( x 2)
Handle ( x 1)
Cap ( x 1)
Large O-ring ( x 1)
Replacement hinges ( x 2)
Assembling your Filter
Remove the filter assembly from the carton.
Loosen the six latches and remove the cover from the tank.
Remove the bottom plate from inside the tank, leaving the white mesh grate in place.
Remove the bio-balls from their package(s) - separating any that have become stuck together. Place them into the bottom of the tank around the outside of the white grate.
Install the plate, knobs up.
Install Large O-ring. If using a lubricant, use water-based rather than oil-based.
Install the cover assembly and close all latches.
Install the handle.
Install the Small O-ring into the cap.
Install the cap onto the handle threads. HAND-TIGHTEN ONLY.
Install a hose adapter onto the IN and OUT fittings. NOTE: Ensure all gaskets are installed.
HAND-TIGHTEN ONLY unless leaks are present.
WARNING: Before installing the filter, disconnect all submersed appliances in the pond or lake from electrical power. CAUTION: Do not expose this filter to sunlight for extended periods.
Decide on a suitable location to install the filter then bury it in the ground, as high as the latches if necessary.
Attach a flexible pipe or hose to the pump and connect it to the filter inlet (marked IN).
Attach a flexible pipe or hose to the filter outlet (marked OUT), and position this water outlet pipe as required.
Note: The filter outlet must not be more than three feet (1 meter) higher than the level of pond water.
If the filter fails to operate:
Check the pump discharge and tubing for kinks and obstructions. Flush out any built-up algae with a garden hose.
Troubleshoot the pump according to its owner's manual.
NOTE: When water pressure begins to decrease noticeably, clean both the pond pump and the filter.
NOTE: Do not use cleaning solvent, detergent, or tap water (which likely contains chlorine) to clean the filter or filter media. Use only pond water. Clean the filter thoroughly, externally and internally, twice a year.
Flushing the Filter
Disconnect the pond pump and the filter from electrical power.
Remove the outlet hose from the outlet adapter and set the hose aside.
Remove the outlet adapter and the backwash cap, and swap their positions.
Connect a waste hose to the adapter on the backwash fitting.
Connect the pond pump to electrical power. This will dislodge and remove dirt in the filter and sponge.
Turn the handle several times to squeeze the sponge.
For more efficient flushing, try backwashing:
Disconnect the pond pump from electrical power.
Remove the inlet hose (not included) from the inlet adapter and set the hose aside.
Remove the inlet adapter and the cap on the outlet fitting and swap their positions.
Connect the inlet hose to the outlet adapter.
Connect the pump to electrical power and turn it on.
Turn the handle back and forth several times to squeeze the sponge.
Disconnect the pond pump from electrical power, return all parts to their original configuration, connect the pond pump to power, and plug in the filter power cord OR proceed to the next section.
Cleaning the Filter
Disconnect the pond pump from electrical power.
Unlatch the six latches and remove the filter lid.
Clean the inside of the filter canister.
Remove the sponge and bio-balls (leaving the white mesh grate in place) and clean them in a container filled with pond water (not tap water). If the sponge shows signs of damage/wear, replace it.
Return all parts to their original configuration, connect the pond pump to power, and plug in the filter power cord.
The Little Giant Pressurized Filter is designed to filter the water in ponds and water gardens and uses the following types of filter media:
Mechanical Filter Media: High surface area sponge media traps solid waste, maintaining clean and healthful water for both fish and plants.
Biological Filter Media: Inert media (bio-balls) offer a large surface area and high porosity that allow the development of beneficial bacteria, which breaks down pollutants such as ammonia and nitrite.
Deciding what type of filtration your new or existing pond needs can be hard. Here's a quick overview of the most common filtration types available, and how they help improve the quality of the water in your pond.
Pressure filters are ideal stand-alone filters for small to medium koi/fish ponds. They also serve as great auxiliary filtration for larger ponds. Not sure which pressure filter is for you? Explore the following chart for some helpful.insights.
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