Mailing List Archive

Mailing List: techdiver

Message Display

In a message dated 8/3/00 11:41:58 AM Central Daylight Time, 
donburke56@ne*.ne* writes:

<< 1. Is filling a lift bag from a second stage only bad in very cold
water?>>

Filling a lift bag directly from your second stage causes a very high flow of 
air to occur.  This high flow increases adiabatic cooling and can cause ice 
to form.  High flow (top end) regulators, depth and cold water are all 
contributing factors.
 
 <<2. What is a better way to fill a lift bag? >>

For planned salvage, it would be best to use a separate air supply such as an 
air line from a compressor topside or separate tanks with nozzles.  For 
occasional light lifting or to deploy an emergency up-line you can just turn 
your head sidewise and hold the opening of the bag over your regulator 
exhaust port as you breath.  Your exhaust bubbles will fill the bag.

Safe diving,
Dale
--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.

Navigate by Author: [Previous] [Next] [Author Search Index]
Navigate by Subject: [Previous] [Next] [Subject Search Index]

[Send Reply] [Send Message with New Topic]

[Search Selection] [Mailing List Home] [Home]