Reply To: carbon fiber tank rules at shoots.
There are some significant differences between the 15 and 30 year CF tanks. The 30 year CF tanks cost much more and have more mass than the 15 year tanks. The 15 year tanks might last longer than 15 years, but you can’t legally get them tested to make sure that they’re safe. Considering that you can get a used one on eBay for less than $200 that’s still valid and can be tested, it isn’t worth the risk in my opinion to stretch out the life of the tank past it’s legal life span. The bottles are labeled with their Date of Manufacture. Make sure that you do your due diligence before putting the tank into service and treat them with respect.