Steve is correct. With my old skimmer (venturi) It was running a 1" mazzi ventuti which I still have. It would get plugged 2 to 3 times a year with a stomatella shell. the injector itself worked very well and produced very fine bubbles.
one cool feature of the mazzi I like is that it has a spring loaded rubber ball on the air intake so it doensn't matter where you have the unit. What I mean by this is if you shut down the skimmer you don't get water flowing out the air intake.
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No matter what the morrow brings, inventors keep inventing things.
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Jonathan
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www.cakerybakery.ca
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