[JohnChristensen]

I know this thread is old news, but I want to caution teams with these tanks still on hand. One of our mentors attempted to install a 90 degree fitting (plastic -- from FIRST Choice) on one of our tanks today, he was only able to turn the fitting about 400 degrees before the rib on the port cracked open. It was a hairline crack, hardly even noticeable to the eye, however it extended the entire length of the threads and was about an 1/8" deep. Since he was watching for this to happen, the flaw was discovered before a real problem occurred. Our plan had been to test each tank with shop air (~140psi) prior to use, after seeing how fast these crack we are moving on to other tanks. If you are going to continue using these tanks, please do so with caution.