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drsteve

Member Since 20 Nov 2005
Offline Last Active Sep 18 2014 06:16 AM
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Posts I've Made

In Topic: Sharks Hunting Tuna at Roca Partida

13 May 2014 - 09:03 AM

You may be right about the fish id. I am certainly no expert. I thought they were skipjack tuna.

In Topic: Curious Morays of Clipperton

12 May 2014 - 11:37 AM

One of the things that makes them look strange is their ability to suddenly switch directions and swim backwards.  I don't know of any other creature that can do that.


In Topic: 1 Diver dead, 5 rescued and 1 missing in Bali

20 February 2014 - 11:31 AM

I have a Lifeline and the thing I like about it is that it allows you to communicate directly with vessels in the vicinity.  All satelite based systems alert an operations center that then has to coordinate a rescue. That may work great when you are in a developed country with good search and rescue infrastructre, but I am skeptical about how well that works in many of the remote locations that divers visit.  Do you really think that a satellite operations center in Nebraska will be able to communciate with a panga in Indonesia that happens to be a mile from you?  The advantage of VHF solution + GPS is that it will work everwhere there are marine radios (i.e. everywhere), even if they are ancient.  That being said, I have only used my Lifeline for "radio check.... radio check..."   :-)


In Topic: Housing care - post rinse

09 October 2013 - 10:35 PM

That is a good question. A few years back I bought the Aquatica service kit and replaced all of the o-rings in my 5D housing. It isn't particularly hard but you have to be meticulous. The buttons use x-rings and I damaged one during the service. Since the kit only gives you the exact number that you need I bought a bunch of spares from Mcmaster-Carr. X-rings only come standard in Buna-N and Viton. I am pretty sure that they use Buna-N but both materials are fine for use with silicone oil. Even so it would be prudent to check them periodically. A safer alternative would be to pack some of the Christolube into a gluing syringe and squirt the outside of the button seal with extra grease.

In Topic: Housing care - post rinse

09 October 2013 - 04:03 PM

After every rinse, I use a Rocket air bulb to quickly blow out the water from the buttons.  Next to each button is a small access hole to let water in and out during actuation.  A quick puff of air gets 90% of the water out.  The less water left in the hole, the less residual salt will be deposited when it drys.  I also blow water out of the gap between the back plate and the housing.  I then towel dry everything.  The more water you get out, the less likely you are to drip when you open the housing.   If I am not diving for a week, I usually remove the ports and the back plate.  I always remove the strobe cables and dry the connectors because they are prone to corrosion.

 

Diggy, thanks for the silicone oil tip.  That sounds like a great idea.