2.8 First dive, initial questions


First dive was 5 minutes in a nearby creek. Current was strong, depth shallow, so mixed results.

  • Found 1/2 oz of water in electronics tube. I attribute this to poor O-ring hygiene, will work on that.
  • After disconnecting ethernet and USB cable, board booted itself up twice on the drive home. I thought the USB cable disconnect would power down the board. Is this a danger sign, maybe something shorting out?


Water is coming in via the db25 connection! That can’t be good. More epoxy needed, I suppose.


One of the smartest things I have done after finding water in my unit was to install a vacuum port and run a vacuum test prior to diving the unit. Cheap insurance. Here is a link to the vent & vacuum parts.