Diving for tank maintenance...

tgreene

Reefer
I own a aquarium custom design, install & maintenance company, and have a client w/ a 1000g system that has finally come to the point that I've had to break down and buy SCUBA gear to work on the system.

Too keep things as simple as possible, I ordered a 25' LP hose so that I can keep the bottle out of the reef tank. I also bought a used set of regulators and gauges from the local dive shop.

After spending 5 hours underwater, and going through (2) 80cf bottles last Saturday, my jaw was about to fall out of my head due to all of the weight that I was having to deal with, so I upgraded my regulators to the Cressi-Sub Ellipse Titanium Alaska/MC7 setup w/ a 360* swivel. After several days of research looking for the lightest weight system that I could find (and afford), every road seemed to lead to this setup.

Being that I have the hose dropped in from above center, I needed the swivel in order to keep the hose weight down to a minimum.

I've wanted to learn to dive for years (since snorkling in Cozumel a few years ago), and fully realize that I'm going about it in the most backwards way possible, because I figure that by the time I get around to taking classes sometime during the winter, I will likely have all of the gear to be ready for open water diving. I'm very close to the Ozark lake region in northern Arkansas & southern Missouri, so the regional diving is quite plentiful.

Because I'm not yet certified, the local dive shop has been very careful and initially reluctant to sell me anything, but after getting to know me a bit better and KNOWING what I'm doing, they have been a great help, and they will fill tanks for me on my honor that I will only use them at this point for the stated purpose of working under 4 feet of water, and also that I never enter the tank w/o someone else present in case of emergency.


Have any of you ever had an opportunity to swim an aquarium..?

mini-DSC_7308.JPG


-Tim
 
Re: Diving for tank maintenance...

<a href=showthread.php?s=&postid=13614915#post13614915 target=_blank>Originally posted</a> by tgreene
I will only use them at this point for the stated purpose of working under 4 feet of water,

Tim,

Are you aware that 4 feet is more than enough water to get an embolism in?
 
Sorta...

I was told to never hold my breath but rather to just breathe slow and steady, and always exhale completely when exiting the water.

-Tim
 
<a href=showthread.php?s=&postid=13634487#post13634487 target=_blank>Originally posted</a> by tgreene
Sorta...

I was told to never hold my breath but rather to just breathe slow and steady, and always exhale completely when exiting the water.

-Tim

The risk of embolism is why they told you to never, never, ever hold your breath. Holding your breath, even briefly, and going up just a little, while breathing compressed air can cause the expanding air to rupture your lung and force a bubble of air into a blood vessel, or elsewhere. IMO it is really worth taking a good certification course, even for tank diving. I would look for getting that instruction from someplace other than the place that is more interested in your money than your well being ;)
 
I agree you need the full certification course and there are risks to what you are doing, but they are much less than open water diving. I am impressed the lengths you go to maintain this tank and the customer should be very grateful. I am sure it is a lucrative maintenance contract, at least it should be.
Good luck with teh future course, you will be ahead of the game.
 
There's nothing like loving the job you are in. If you have to work, then why shouldn't it be fun. Congrats.

Has anyonme heard of Mr. 4000. A few years back he had a 4000 gallon aquarium in his basement. It was truly awesome. There were pictures on his web site of him in full scuba gear cleaning the glass on his tank. He eventually had to tear it down though due to humidity issues. Go figure, humidity issues with a 4000 gallon tank. Who would have thought. He tried everything from exhaust fans to de-humifiers but nothing helped and he was forced to close it down. Too bad, it was beautiful. I saw a thread recently where he came back to RC after two years but doesn't want to start a smaller tank. He had a 750 but got bored with it.

Sorry, I am not trying to hijack your thread, just reminiscing.
 
I do remember him.

I personally have 1400 gallons to contend with in my home, and humidity is a major issue!

-Tim
 
the rules must be different in america? i owned my dive gear b4 i was certifed, but i could never get an air fill without my cert card. its illegal in Australia to fill a tank of an un-certifed diver.
 
Re: Diving for tank maintenance...

<a href=showthread.php?s=&postid=13614915#post13614915 target=_blank>Originally posted</a> by tgreene
After spending 5 hours underwater, and going through (2) 80cf bottles last Saturday, my jaw was about to fall out of my head due to all of the weight that I was having to deal with, so I upgraded my regulators to the Cressi-Sub Ellipse Titanium Alaska/MC7 setup w/ a 360* swivel. After several days of research looking for the lightest weight system that I could find (and afford), every road seemed to lead to this setup.

Since purchasing the Cressi Ellipse Titanium, life underwater has been so much better! :p


mini-DSC_7428.JPG
 
<a href=showthread.php?s=&postid=13781975#post13781975 target=_blank>Originally posted</a> by dougie
the rules must be different in america? i owned my dive gear b4 i was certifed, but i could never get an air fill without my cert card. its illegal in Australia to fill a tank of an un-certifed diver.

it's not supposed to happen here in the US either. the dive shop filling his tanks is open to a heavy lawsuit if he gets hurt.
 
Re: Diving for tank maintenance...

Because I'm not yet certified, the local dive shop has been very careful and initially reluctant to sell me anything, but after getting to know me a bit better and KNOWING what I'm doing, they have been a great help, and they will fill tanks for me on my honor that I will only use them at this point for the stated purpose of working under 4 feet of water, and also that I never enter the tank w/o someone else present in case of emergency.
This was covered in my first post in this thread...

-Tim
 
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