Rust on neck

[novasquid]

Picked up two steel tanks, born dates 2009 and 2010. They both have rust on the neck tips. Anything to worry about? I'm dropping them off in two days to get VIP'd but thought I'd ask here in the meantime. Hydro is current on both. Here are some pics.

Tank one



Tank two

 

[egovenatus]

you never want to see rust on a steel tank, but that does not look too bad. as long as it is not all over the inside. I would ask them to clean and paint the rust spot when they tumble the tanks (if it is needed) during the VIP. do they have any gas in them? I would be would worried if they have been stored empty....

---------- Post added October 8th, 2013 at 07:37 PM ----------

oh yes, Rustoleum sells cold galvanizing paint... Not as good as the original finish but better than rust...

 

[novasquid]

They both have gas in them. Can't wait to try them out this weekend.

 

[egovenatus]

hopefully no rust on the inside then, that said, rust on the inside isn't always bad either, as long as it is not too bad. ...I may be there to dive this weekend, not sure yet, I will let you know tomorrow.

 

[Doc Harry]

Anything to worry about?

Of course there is something to worry about. Rust on a steel cylinder is not good, it shows that the tanks have been poorly maintained. Rust under the valve suggests that the valves have not been removed in a long time. A good cylinder inspection will give you a definitive answer about their condition.

 

[Instructor_Tom]

if these are new to you I would get the VIPed before diving them.


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[Scared Silly]

Picked up two steel tanks, born dates 2009 and 2010. They both have rust on the neck tips. Anything to worry about? I'm dropping them off in two days to get VIP'd but thought I'd ask here in the meantime. Hydro is current on both.

The paint and or galvanizing often chips around the neck. One can touch it up. Remove the valve, brush the rust, and use a little galvanizing paint and you are set.

if these are new to you I would get the VIPed before diving them.

I'm dropping them off in two days to get VIP'd

One would think that is the OP's plan given what they posted.

 

[egovenatus]

He is getting them VIPed, the tanks have been in storage almost since new. The original owner states they were used once or twice. As I said one never wants to see rust on steel tanks, but it happens and is not always that serious. Simply brushing off minor rust, prepping the surface and repainting or cold galvanizing the spot is more than enough to take care of it. My concern, as I told Nova by email was that they had no air in them and had been stored that way, possibly pointing to rust on the inside. Which can be serious, but usually is not. I dive steel 100s I bought in 2001, new, and have been tumbled because of wet fills on boats several times during VIPs over the years. They still pass inspection and Hydro. I cold galvanize chips when I need to and dive on. Nova's new tanks are 3 and 4 years old and have minor rust on the neck.... It happens...the VIP will make sure they are good to go!

 

[novasquid]

Tanks came back with a clean VIP, "cleanest steel tank I've ever seen" kind of clean.