Another good SCBA tank deal - IF you have your own compressor

Ahhhh, the $19 is to Kalifornia, I guess it adjusts based on where you want it delivered... Its still $19 to San Diego, not sure about other locations.

Yes, DOT-E11194 is also part of the service life extension program along with DOT-E-10915 and DOT-E-10945. Below is what I posted a while back about my research into CFFC cylinders and service life…​___________________________________________________________________________________________________________________________________________
One thing I’ve discovered after much research is that the 15 year service life is pretty much arbitrary, and based on outdated manufacturing processes from over 30 years ago for fiberglass cylinders. A summary is copied below from a recent study done on 15 versus 30 year service life for CFFC cylinders. Bottom line up front, there is NO REASON not to use the CFFC cylinder as long as it is tested (hydro) every 5 years and it doesn’t have disqualifying mechanical damage. DOT-SP 10915 and 10945 cylinders made to ISO 11119-2 were specifically pointed out as having been manufactured for a 30 year service life. DOT-E11194 also.

-Over 300 end-of-life (15 years old) DOT-CFFC cylinders have been tested to ISO 11119-2 “at manufacture” acceptance requirements, and passed. NONE FAILED!
Three years of intensive studies requested by the US Navy and DOT which followed ISO 11119-2 “at manufacture” testing procedures have conclusively shown that the DOT-CFFC cylinders can be safely used for at least 15 years beyond their current lifetime.

The tests showed that the cylinders were still meeting “at manufacture” design requirements, even after 15 years of hard use (many of the cylinders in the studies were from large metropolitan fire departments and had seen extensive use in the field). Current failures have been due to mishandling of the cylinders, not due to failure of the cylinder due to fatigue. DOT-CFFC cylinders have been fatigued up to 24,000 cycles at developed pressure (5192 psi for a cylinder with an operating pressure of 4500 psi), and did not have liner leaks. This number of cycles, according to ISO 11119-2, results in an infinite life cylinder. Cylinders have been life extended and re-qualified using these special permits.
No data has been presented that shows SCBA DOT-CFFC cylinders are not safe to life extend.
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Since there is really no technical reason not to continue the 5 year hydro routine until 30 year service life is reached, one may conclude that the rationale for not doing so is strictly political. Think about it. Every Fire Station in the USA uses these tanks, and replaces them every 15 years. Look at the MASSIVE amount of money that would be lost if the service life were extended to 30 years. So the Swamp DC lobbyists for these CFFC manufacturers (Luxfer, Carleton, SCI, etc.) keep the pressure on the Gubmint so what is technically justified doesn't happen and cause a large loss of continuing revenue. 

You're welcome. Heads up to those that play the stock market. If you see DOT extend the service life of these CFFC tanks to 30 years (and with hydros, not the specialty shear wave UT testing method that is currently authorized, and expensive), it'll be time to make a butt load of cash shorting these CFFC manufacturers... :devil:

Digital Wave is the only company I know of that is authorized to perform Modal Acoustic Emission (MAE) testing to extend service life of CFFC cylinders. From what I can tell you send them the cylinder, they test and send back. If your cylinder fails the test they still send you a used one that has passed the test. They cover over the original cert and glue on an updated cert that extends your cylinder for an additional 5 years. You can do this two more times for a total extension of 15 years or 30 years total service life.​Info on CFFC tank life.

http://media.wix.com/ugd/d00b78_72625b919876457fb9191418c1259c6b.pdf

Digital Wave Corp does this, but when I checked into it, the cost was more than just buying another CFFC tank that had 3 to 5 years remaining service (~$300).

What I do with expired tanks that are in good condition is have them hydro’d, but NOT ask for recertification. Some shops will perform the one minute 7500 psi hydro, some won’t. Shouldn’t be any skin off their backs, you are paying (approx. $30) for the labor to hydro the tank. You don’t care if they put a sticker on it or not, you just want to know if its safe. I’d say only dive shops that do their own hydros are candidates for this.

Another option is to drain down the tank, take off the valve, and inspect the tank yourself looking for moisture, cracks, discoloration, etc. You can’t see the entire inside unless you have a boroscope, but you can get a pretty good idea with a bright flashlight. Then if its OK, change out the software (o-ring) and put the valve back on the tank. If your tank was made IAW ISO 11119-2, and is a DOT-E11194, DOT-E-10915 or DOT-E-10945 tank, then it was DESIGNED for a 30 year service life.

​If you have tanks that are within a few months of end of service life, then take them to get hydro'd, at least you'll get another 5 year sticker and be good for that amount of time. You'll need to fill your own tanks after the service life expiration of course. 

You’re welcome guys. Feel free to show me some love with accuracy points.