| Jump filter
I was reviewing my copy of issue no. 5, and in the article profiling Mr. Kaneko they make reference to the Endless bio filter, and Jump filters installed on his pond. From what I can tell the endless filter is a jmat filter bay that is equal in size to the pond it is attached to. But what are Jump filters? I see reference to the filter being preasurized so does that mean it's the Japanese equivalent of a bead filter?
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