149 replies to this topic

[John Bantin]

I know of someone who did forget to pull a vacuum and went in the water without the plug. This is essentially like diving with a hole in the bulkhead of your housing. Fortunately, he had a dome port on and caught it as the water started rushing in so he was able to turn the camera so the water began collecting in the dome as he was aborting the dive.

To Adam's point, having a vacuum system isn't completely fool proof. You still need to check your system before jumping in.

This doesn't add up. Surely, if water could get in, air would have got in first, before he hit the water. Sounds like someone ignoring the red light. Thank goodness he doesn't have a rebreather!

[AndyBarker]

This doesn't add up. Surely, if water could get in, air would have got in first, before he hit the water. Sounds like someone ignoring the red light. Thank goodness he doesn't have a rebreather!

Is that flashing red or full red it makes a difference, the choice is yours.  

Andy. 

[John Bantin]

I think we are venturing into the realms of the urban myth, where diving computers, BCs and even pressure-gauges can kill you!

[adamhanlon]

Not all systems have a red light. Just saying.....

 

If my housing tries to kill me, I'll definitely get a vacuum system

[andy_deitsch]

This doesn't add up. Surely, if water could get in, air would have got in first, before he hit the water. Sounds like someone ignoring the red light. Thank goodness he doesn't have a rebreather!

He doesn't have electronics on his system. He just checks the vacuum before going in. Just forgot to do that on this particular dive.

[nikonscubadiver]

Vivid Housings has tiny electronic indicators available for less than 75 Euro, with a switch and red and green LEDS to indicate whether the vacuum has been lost. I think most housings would have space for these where they can be seen from the outside. They also make the Leak Sentinel which is the complete unit, valve, vacuum sensor etc.

Can you please provide a link to that item and price? 

[nikonscubadiver]

The airlock from Backscatter looks nice but I was wondering about the black fittings in the pictures. Is anyone who purchased this system able to let us know what material they are made from? I saw another posting here that said "I am removing the valve for packing the housing, closing the bulkhead fitting with the included cap. Packing pressure on the valve could possibly leverage into breaking the plastic bulkhead fitting. Reintalling the valve will just take a few seconds." I was just wondering about the other mechanical parts of the system. 

[NikonKidF3]

Can you please provide a link to that item and price? 

Here is the link to the Leak Sentinel, which I used for week in Key Largo earlier this year and highly recommend to reduce your stress levels!

 

http://www.vividhous...ak-sentinel.php

 

I see you are using nearly the exact same setup I use: Aquatica housing, with D90, ULCS arms.  I use S&S YS-110 strobes though!

 

Willis

[nikonscubadiver]

Vivid Housings has tiny electronic indicators available for less than 75 Euro, with a switch and red and green LEDS to indicate whether the vacuum has been lost. I think most housings would have space for these where they can be seen from the outside. They also make the Leak Sentinel which is the complete unit, valve, vacuum sensor etc.

 

Pete 

I am looking for a link to the electronics for 75 Euro. I have searched the site many times and can find no reference to this. 

 

Roger

[adamhanlon]

Hi all,

 

Just a "heads up" that I have and am diving a Backscatter Airlock at the moment. I'll write up my thoughts about it very soon!

 

 

Adam