Question about Dacor Viper Tec Scuba Regulator

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Dacor Viper regulator leaks water

When I tilt my head to the right causing the exhaust port to point up, excessive sea water enters the regulator. However keeping my head level or tilting it to the left canting the exhaust down, the regulator breathes fine.
Is there a fix for this?

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  • sickaroll Apr 09, 2009

    I had the same problem, and almost no one had even heard of Dacor regs, so I couldn't get a service!
    Actually Dacor and Mares are almost part-for-part the same regs, I brought mine into a dive shop (The Great Outdoors in Dublin) and they send them off to a guy in Achill Island who does them. Came back without the problem.
    18 months on and my primary 2nd stage now hisses, it might be time for a new set from a recognised manufacturer!


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A Dacor Viper is a Mares MV they are the same product. Mares bought Dacor (a highly respected manufacturer) and renamed the viper and put their name on it. Any Mares stockist should be happy to service it for you.

Posted on Oct 05, 2012

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Pressure inside 2nd stage should be the same as ambient so no water should enter. Maybe should adjust to freeflow and then a nough
back until free flow just stop. careful your reg will now be very sensitive.
Another problem could be a worn exhaust valve - change a new one, see if it helps.
Good luck,
Eddie Foo (Malaysia)

Posted on May 31, 2009

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Posted on Jan 02, 2017

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