[PSUBS-MAILIST] automatic valve

[hank pronk via Personal_Submersibles]

Hi All, I am looking for a safety back up on my solenoid vent valve.  I envision an upside down foot valve.  I want a device that blocks the air flow from the MBT once submerged.   This is in case the solenoid valve gets debris in the seat and fails to seat.  I only need one auto blocker because I have two MBT's.  I can make buoyancy adjustments with the second tank.  A float that closes a valve sort of thingHank
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