> Based on my experience, that is not necessary. I used regular 90 degreeelbows in the corners of my 1.5" manifold and there is no noise problem. The only thing you hear in my fish room is the bubbles from the tanks.
With a blower I used 1.25" piping to feed the tanks & pushed a valve into this pipe above each tank. The blower produces volume but little pressure. Would a linear power a similar system or should it be tapered off to smaller diameter piping the further from the pump?
Tim
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