I have a used tank that was the big carbon fiber Scott tank, I think 8 L ,, Any way I would fill it up to 4500 , It would leak down to 3000 PSI and stay at that pressure, I changed gages out, Everyone said put in in the bath tub , So I put it in the bath tub,,, No leaks? Filled it back up to 4500 PSI put it in the bath tub, Holy Cow I had leaks every where , Seems the carbon fiber seams were coming loose,, Its just as I thought no boom just leaks.
Mike
Mike