Re: [Paddlewise] RE: Stuart Trueman - Paddled around Oz

From: Darryl Johnson <darryl_johnson_at_rogers.com>
Date: Sat, 06 Aug 2011 17:03:17 -0400
On 06/08/2011 6:21 AM, Paul Hayward wrote:
 > Peter said
 >> <snip>
 >
 > I'd say that it's conclusive - the only way to keep these devices alive
 > reliably is to bag them (Aquapac or similar) and then to rinse them 
gently
 > in fresh water fairly frequently. One good buddy is an ex-Navy 
electronics
 > guru&  treats his gear well (as you might expect). He went through 
3 Etrexes
 > before he bowed to the reality that irrespective of what it says on 
the box,
 > an IP7 or 8 rating doesn't survive for more than a couple of years 
in the
 > real world.
 >
I know my watch repair guru informed me that I really needed to 
replace the tiny rubber gaskets on my "waterproof" diving watch every 
few years as they dry out and begin to allow water past. I would 
assume that there would be a similar degradation of the gaskets on 
GPS, VHF and other "waterproof" or "water-resistant" devices.

-- 
   Darryl

 > Whether it is salt-crystal buildup on rubber seals or some other 
mechanism,
 > I'd say you get 10x better reliability if it's both waterproof& 
bagged.
 > Then if the waterproofing is a bit tired, all it has to survive is 
a bag
 > leak - and if the bag cracks&  leaks a bit - the device's 
waterproofness
 > should be able to cope with such a gentle immersion. At least it 
becomes a
 > two-point-of-failure issue.
 >
 > Kayaking is a tough environment.
 >
 > Best Regards
 > Paul Hayward, Auckland, New Zealand
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Received on Sat Aug 06 2011 - 14:03:39 PDT

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