[PSUBS-MAILIST] second stage adjusting

[Rick Patton via Personal_Submersibles]

The air as it expands comes out the two stage regulator that is mounted low.

On Fri, Jan 23, 2026 at 7:08 AM Jon Wallace via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> How do you release pressure from the motors when surfacing?
>
>
> On Friday, January 23, 2026 at 08:25:20 AM EST, hank pronk via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
> Hi Rick, I use a first stage regulator with the spring removed to act as
> the pressure compensator.  I use a first stage to bring down the pressure
> from the tank as normal, then send that air to the second first stage
> regulatow with spring removed, then to the motors.  The output pressure to
> the motor is a constant 2 psi or so.  I tie all the motors and arm to the
> one regulator.  I have had no luck with the scuba second stage regulator
> set up.  Tested to 400 feet, no issues.
> Hank
>
>
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