[PSUBS-MAILIST] bellows add

[Alan James via Personal_Submersibles]

Hank.I believe Sean answered that question & saidthe air in the belows would also cool so wouldn'texpand in relation to the cabin air & so wouldn'tfeed in more oxygen. I am pretty sure they are metal belows, so would transferthe cabin temperature.Alan
      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: personal_submersibles at psubs.org 
 Sent: Saturday, March 14, 2015 4:12 AM
 Subject: [PSUBS-MAILIST] bellows add
   
I think we talked about this before, but I can't remember the outcome.  How does a bellows add (O2) system deal with or compensate for negative pressure caused by temperature change.  The temperature  falls for a long time causing negative pressure when I dive in a cold lake.  Is it just a matter of letting the O2 level increase?  It seems to take very little hp air to correct it.  
Hank
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