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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
Posts: 5,560
I just re-read "nipple is adjustable". This rings a bell! If you screw the nipple into the bell, your pressure coming from the top will be higher (as spring tension will be greater).

They are usually not adjustable. There is just a nipple and membrane underneath it. Yours might be.
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Old 07-29-2008, 03:13 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #29 (permalink)