This is, by far, the most effective way to filter large water features.
Simply put the pond size into the chart below for all of your products.
Ex: - 15,000 sq. ft. pond -- 1 snorkel with 6 centipedes, a 15' x
55'' liner, and a flow rate of 14,500 GPH.
Bog Centipede Module - 27 lbs.
Bog Snorkel Vault & Cap - 27 lbs.
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This filter is made of heavy-duty polyethylene and comes
in six-foot sections which can be snapped together as needed!
Use a bed of gravel to adjust the pitch of
the filter. It should slope towards the vertical clean-out (snorkel)
TIP: If you put a snorkel between every fourth centipede, you can
have up to 16 centipedes and get a flow rate of 40,000 GPH. This huge
constructed wetland would require a 60' x 60' excavated area, and it
would take 380 tons of gravel. This monster will filter a 2.5 million
gallon pond with capacity to spare. The Pond Guy's™ pond, for
example, is only 1 million gallons