[PSUBS-MAILIST] scuba reg problem

[Ken Martindale via Personal_Submersibles]

Sean,

 

I had a Sherwood regulator and used it for about 8 months. It worked as you described but mine had a problem. The piston had a little path to leak a small amount of air into the equalizing chamber which was intended to keep any water out by virtue or the small rubber valve on the side of the regulator. The problem I had was that the rubber valve worked fine but the small leak path in the piston did not pass any air and thus no small bubbles. When diving to 150 feet the regulator thought it was at the surface and did not compensate for the depth and I felt I was sucking through a soda straw. Getting a new piston solved the problem but I never used the regulator at 150 feet again.

 

Bottom line check and make sure the little bubbles are flowing.

 

For what it’s worth,

 

Ken Martindale

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Sean T. Stevenson via Personal_Submersibles
Sent: Sunday, August 03, 2014 5:26 PM
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] scuba reg problem

 

The exception to this would be if the reg is a Sherwood. Sherwood first stages use a dry air bleed system which constantly vents a miniscule amount of gas, instead of allowing seawater into the balance chamber. While this works, it makes it difficult to distinguish the bleed from a problematic leak.

Sean

 

On August 3, 2014 3:25:13 PM CDT, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Hi Hank,

the little non threaded holes are usually to let water pressure in to balance

the regulator to maintain your 130psi above ambient.

It sounds like o-rings or valve seat. Nothing should be leaking out of it.

It won't hurt if it's not much & you can get it serviced.

Alan


Sent from my iPad


On 4/08/2014, at 7:11 am, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Help

I bought a scuba regulator set for emergency breathing.  When I pressurize the system, the first stage regulator is venting out a small vent on the side of the regulator.  The vent hole has no threads, so I assume! it is a vent.  The amount of air is very slight, is this thing screwed.  It works fine otherwise

Hank.

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Sent from Kaiten Mail. Please excuse my brevity.

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