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I would like to start a discussion about the risks involved in cold water diving especially regarding dry suit failures. You don't have to bee diving in cold water to have a life tretaning situation in case of a suit failure. WKPP for example are diving in relatively warm water but they have in water times of 15 hours. Even in 18-20 C water you will probably not survive with a completely flooded suit. In really cold water you will probably not survive even 30 min. In open water you can always skip part of the deco and still have a good chance of survival but in a cave, hours from the exit it is anouther story. Most commonly a dry suit only floods partially but even a quite small hole can flood almost the entire suit. In Plura a small hole flooded 80% of the dry suit and this was from a small hole of 1 cm in length. On every long cold water cave dive or even long OW decompression dive i make i face a very serious risk in case of a suit flood. The reason for this post is to ask if anybody can come up with a solution to the problem. A decompression habitat would do the trick for OW diving and in some cases cave diving. But a decompression habitat is often very impractical. it required heavy weights, several tons and a big boat with a powerful crane for OW use. What i have been thinking of is making a habitat filled with hot water. This is a lot more manageable on even a rather small boat as there is no lift created from the air. The problem is that huge amounts of water needs to bee circulated trough the habitat to keep the temperature. This calls for a very powerful heating device. I have not been able to find a heating device that is both practical and powerful enough. If any one have made anything similar or have some helpful information it would bee greatly appreciated. Also If somebody thinks this is an idiotic idea please do enlighten me. Other solutions might bee the use of hot water suits but they require a hose to the surface and can therefore not bee used. If any body have any ideas that you would like to share it would bee greatly appreciated. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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