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Brent7831
There is such a device. I want to modify the pump to: - draw in more air - produce smaller bubbles. I found a manual that suggests cutting grooves in the impeller and attaching a sponge. A tube was run to the impeller (through a PVC intake). By the way, something similar is done by the standard Jebao attachment. What else can be improved? Can I leave the attachment that came with the kit, or should I use another method for air intake (what kind)?