PLBs Can Save Your Life

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Brb, replacing the o-ring ever year or so is a good idea, and I hope that someone comes up with a good US source. I bought a couple from Hdvseatvek, shipped from Australia, for $12. More important is regreasing the o-ring. Mine leaked a little the first day on my last trip, no harm but not something you’d want to happen every day. I added a little silicone grease which fixed that for the rest of the week. I do open and check daily, good idea for any canister.

JD, I think you just want it snug as well as greased with silicone grease. Check daily as to ease of opening and leaked.

O-rings themselves are super inexpensive (pennies!) so once we have the size, material, and durometer. I'm hoping he will share the info but if not I suppose $12 for a few isn't bad if you only have to replace it yearly... I did notice that it came with A LOT of grease on the o-ring already, more so than anything I would ever put on anything else I have (lights, strobes, camera). I will report back on the functionality after diving with it compressed and tight...I have 83 dives scheduled on a trip that I am leaving on next week so it will be plenty of time to test it, use it, and provide some real feedback short of activating the PLB itself.

I think opening it to check it every day is probably a good idea. Thanks for the suggestion.
 
I'm hoping he will share the info but if not I suppose $12 for a few isn't bad if you only have to replace it yearly
I agree. We do need to get the info on the o-rings and just buy them here.

I will report back on the functionality after diving with it compressed and tight
I would not tighten it more than snug.
 
. . .
I think opening it to check it every day is probably a good idea. Thanks for the suggestion.

I have a different canister, the no-longer-produced McMurdo, but my thinking has been the opposite: do not open it often because each time the friction (though presumably lessened by silicone lube) stresses the o-rings and provides an opportunity for contaminants (e.g., dust, a hair, a grain of sand) to stick to the silicone lube.
 
no-longer-produced McMurdo
I rented one of those once years ago. Heavy! I was glad to find my nylon canister.

do not open it often because each time the friction (though presumably lessened by silicone lube) stresses the o-rings and provides an opportunity for contaminants (e.g., dust, a hair, a grain of sand) to stick to the silicone lube.
There's truth there, but how often do you open your camera housing? Caution & care indicated.
 
but my thinking has been the opposite: do not open it often because each time the friction (though presumably lessened by silicone lube) stresses the o-rings and provides an opportunity for contaminants (e.g., dust, a hair, a grain of sand) to stick to the silicone lube.

There's truth there, but how often do you open your camera housing? Caution & care indicated.

I can see the logic for both. Hmm.....
 
I think opening it to check it every day is probably a good idea. Thanks for the suggestion.

I believe of “don’t fix if it ain’t broke”. That’s why I have a clear case & some of the UW camera cases too. All I need to do is to pull it out of my BCD pocket and see if water/ moisture gets into it. I do clean the seal surfaces and silicon grease the o-ring before putting the PLB1 in it.
 
I believe of “don’t fix if it ain’t broke”. That’s why I have a clear case & some of the UW camera cases too. All I need to do is to pull it out of my BCD pocket and see if water/ moisture gets into it. I do clean the seal surfaces and silicon grease the o-ring before putting the PLB1 in it.
That is one of the nice things about the UK lights, they have a clear acrylic dome top. Just invert and look.
 
https://www.shearwater.com/products/swift/

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