Valve Drill

[spectrum]

I dive a Sherwood Blizzard and ahave a question...

If I am doing a valve drill and shut the regulator down while underwater and breathe it down (with a buddy spotting) will salt water then enter the regulator through the dry bleed element?

Pete

 

[rcontrera]

No. Think of the dry bleed as a heavy duty exhaust valve that only lets air flow one way.

 

[Sherwood SCUBA rep.]

its should not flood it is a one way valve

 

[CrackedConch]

During my equipment specialist class, my LDS showed me the difference in internal components between a sealed 1st stage and an open one.

I'm impressed with the Sherwood bulletproof/sealed design, but how much air do you lose on a dive through the valve?

 

[tnfireman]

The website says only 1-2 breaths per tank.
I dive a Brut and can't tell any difference in gas usage between it and any other reg.
Ray

 

[Sherwood SCUBA rep.]

its about 15-30 cc per min.

 

[skdvr]

I just wondering what the purpose of that one way valve is???

Thanks
Phil

 

[rcontrera]

I just wondering what the purpose of that one way valve is???

That is how the first stage senses the surrounding pressure. Basically, it is designed to leak air at a set pressure above whatever the atmospheric pressure is. that set pressure is what is fed to the second stage hose. As you go down deeper and increase the atmospheric pressure, the first stage has to increase it's pressure to make the valve leak which increases the air to the second stage.

 

[skdvr]

I see, thanks for the info!!! I appreciate the help a lot...

Thanks
Phil