PolygeyserŪ Pneumatic Drop Bead Filters
Automatically backwash—no moving parts or electronics!
Designed as "bioclarifiers" these filters are capable of handling biological loads 50 to 100% higher than bubble or propeller-washed bead filters. Very resistant to clogging and caking-they backwash automatically every few hours using a burst of air from the charge chamber. PR Series filters (pump inlet/pressurized discharge) come with plumbing to accommodate a water pump (10 psi max). AL Series filters (gravity inlet/airlift discharge) are set up for airlift pumping.
Water and air flow into the vessel continuously. Water goes in the lower pipe, up through the media and back to the fish. Air is pumped into the charge chamber where it accumulates to a critical volume and releases the air in a burst, knocking the debris off the media. The debris then settles to the bottom and is removed through the 2" sludge drain every 2–3 days. Nitrotech media (included) gives 50–100% better nitrification rates than standard round bead media.
An air pump is required and is not included; it must produce more pressure than the water pump/system head. A check valve (228225) must be used in the air line. Max pressure 10 psi. Ship via motor freight, FOB factory. One-year warranty.
Note: Crating charges apply. An AES representative will contact you with your total.
Bead Filter Specifications